Skip to product information
A black heavy duty slam ball with a textured surface and the weight '3 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '3 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '4 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '5 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '15 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '25 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '20 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '12 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '10 KG' labeled on it.
  • A black heavy duty slam ball with a textured surface and the weight '8 KG' labeled on it.
  • 3 black heavy duty slam balls with a textured surface and the white background
  • 4 black heavy duty slam balls with a textured surface and the white background
  • 5 black heavy duty slam balls with a textured surface and the white background
  • 7 black heavy duty slam balls with a textured surface and the white background
  • 8 black heavy duty slam balls with a textured surface and the white background
  • 5 black heavy duty slam balls with a textured surface and the white background
  • Heavy Duty Slam Balls
Heavy Duty Slam Balls 3kg–25kg

Heavy Duty Slam Balls 3kg–25kg
In Stock - Ready to ship

Select Your Option

15 variants available
Weight Price Qty Add Subtotal
Single / 3kg
Single / 3kg £9.99
£0.00
Single / 4kg
Single / 4kg £11.99
£0.00
Single / 5kg
Single / 5kg £12.99
£0.00
Single / 8kg
Single / 8kg £14.99
£0.00
Single / 10kg
Single / 10kg £16.49
£0.00
Single / 12kg
Single / 12kg £21.99
£0.00
Single / 15kg
Single / 15kg £29.99
£0.00
Single / 20kg
Single / 20kg BEST VALUE £42.99
£0.00
Single / 25kg
Single / 25kg £54.99
£0.00
Set (Multiple Pairs) / Sets A: 3-5kg
Set (Multiple Pairs) / Sets A: 3-5kg £33.99
£0.00
Set (Multiple Pairs) / Sets B: 3-8kg
Set (Multiple Pairs) / Sets B: 3-8kg £48.99
£0.00
Set (Multiple Pairs) / Sets C: 3-10kg
Set (Multiple Pairs) / Sets C: 3-10kg £65.99
£0.00
Set (Multiple Pairs) / Sets D: 3-15kg
Set (Multiple Pairs) / Sets D: 3-15kg £117.99
£0.00
Set (Multiple Pairs) / Sets E: 3-20kg
Set (Multiple Pairs) / Sets E: 3-20kg BEST VALUE £160.99
£0.00
Set (Multiple Pairs) / Sets F: 8-20kg
Set (Multiple Pairs) / Sets F: 8-20kg BEST VALUE £125.99
£0.00

Hex Dumbbell Storage Rack

Keep your dumbbells organised and off the floor.

View
A3 Vertical Rack
A3 Vertical Rack Hold for up to 3 pairs £29.99
£0.00
A5 Vertical Rack
A5 Vertical Rack Hold for up to 5 pairs £44.99
£0.00
A6 Vertical Rack
A6 Vertical Rack Hold for up to 6 pairs £49.99
£0.00
L3 - 3Tier Rack
L3 - 3Tier Rack Hold for up to 12 pairs £99.99
£0.00
0 items 0.0kg £0.00
📊
Volume Rate: £0.00/kg
Add £500.00 more for FREE delivery
Zoomed image
⚖️ Compare Products 0

Compare Products (0)

Free Delivery

over £500

45-Day Returns

Secure Payments
💰

Bulk Order Discount Rates

Standard Rate: £1.70/kg (inc VAT) | Save more when you order in bulk! Discounts applied automatically at checkout.
Total Weight Discount % Your Price Best For
Under 500kg 0%
£1.70/kg (inc VAT)
 Home gyms, small studios
500kg - 999kg 5% OFF
£1.62/kg (inc VAT)
Save £0.08/kg
 Small commercial gyms
1,000kg - 2,999kg 10% OFF
£1.53/kg (inc VAT)
Save £0.17/kg
 Medium gyms, PT studios
3,000kg - 4,999kg 15% OFF
£1.44/kg (inc VAT)
£1.20/kg + VAT | Save £0.26/kg
 Large fitness centers
5,000kg+ 22% OFF
£1.32/kg (inc VAT)
£1.10/kg + VAT | Save £0.38/kg
 Commercial chains, resellers
📊 Example Savings Based on Standard Rate (£1.70/kg):
  • • 600kg order: £1,020 → £969 | Save £51 (5%)
  • • 1,500kg order: £2,550 → £2,295 | Save £255 (10%)
  • • 4,000kg order: £6,800 → £5,760 | Save £1,040 (15%)
  • • 6,000kg order: £10,200 → £7,920 | Save £2,280 (22%)
💡 How it works:
Orders under 3,000kg receive percentage discounts off the total. Orders 3,000kg+ use special bulk rates (£1.20/kg or £1.10/kg) plus 20% VAT, resulting in 15% and 22% savings respectively. All discounts are applied automatically.
📦

Complete Sets & Storage Solutions

Save money with our pre-configured sets or add a professional storage rack to your order.

SAVE £150

Starter Set

Includes:
  • • 6 pairs: 5kg, 2× 10kg, 2× 15kg, 2× 20kg
+ Barbell total 40kg
£72.49
£469.99
SAVE £250

Pro Set

Includes:
  • • All from Starter Set plus
  • • 2× 17.5kg, 2× 20kg, 2× 22.5kg
18 dumbbells total (225kg pairs)
£188.49
£799.99
MOST POPULAR

Complete Gym Set

Includes:
  • • Complete range 2.5kg - 30kg
  • • All from Starter + Pro
  • • Additional heavy pairs + bar rack
+ Barbell total 40kg
£1,130.99
£1,299.99

We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • Shop Pay
  • Union Pay
  • USDC
  • Visa

Returns Policy

Shipping Info

Warranty

Privacy Policy
🛍️

Frequently Bought Together - Save More!

Hex Dumbbell Set 2.5–30kg with Rack
+£560.99
Extra Thick 10mm Non-Slip Yoga Mat
+£3.99
Anti-Roll Non-Slip Neoprene Dumbbell Pair 0.5–10kg
+£2.49

Description

Transform your strength and conditioning regime with our professional-grade Heavy Duty Slam Balls, engineered specifically for intense, high-impact workouts. Unlike standard medicine balls, these purpose-built training tools feature a specialised no-bounce design that absorbs impact upon landing, allowing you to maintain workout momentum without chasing your equipment across the gym floor.

The precision-textured surface provides exceptional grip even during the most intense, sweat-drenched training sessions, while the ultra-durable rubber construction withstands repeated slams on any surface.

Available in 3kg, 4kg, 5kg, 8kg, 10kg, 12kg, 15kg, 20kg, and 25kg weight pairs and full sets, these versatile slam balls accommodate every fitness journey—from rehabilitation and beginner conditioning to elite athletic performance training.

Incorporate these slam balls into explosive throws, rotational movements, core-focused drills, or full-body HIIT circuits to develop functional power, enhance core strength, and build unmatched endurance.

Features

Key Features:

  • VERSATILE TRAINING TOOL - Perfect for explosive power exercises, core strengthening, and full-body conditioning workouts - Ideal for CrossFit, functional training, MMA conditioning, and rehabilitation.

  • PREMIUM CONSTRUCTION & DURABILITY - Manufactured with high-density rubber that withstands repeated high-impact slams - Non-bounce design stays put after impact for efficient workout flow - Reinforced.

  • TEXTURED GRIP TECHNOLOGY - Specialized tread pattern surface ensures secure handling even during sweaty workouts - Maintains perfect control during explosive movements and dynamic exercises - Reduces.

  • MULTIPLE WEIGHT OPTIONS - Available in comprehensive range from 3KG to 25KG to suit progressive training programmes - Choose individual weights for specific exercises or collect a complete set -.

  • SPACE-EFFICIENT FITNESS SOLUTION - Compact size maximises workout variety without requiring extensive storage space - Perfect for home gyms, personal training studios, and commercial fitness.

Specifications

Dimensions (Weight-Based Sizing):
Across the full range — 3kg, 4kg, 5kg, 6kg, 7kg, 8kg, 9kg, 10kg, 12kg, 15kg, 18kg, 20kg, and 25kg — each slam ball is designed with a diameter that grows progressively with its weight. The lighter balls maintain a compact, easy-to-maneuver shape ideal for speed work, while the heavier models feature a broader, more substantial diameter that enhances control during high-power slams. This gradual size increase ensures every weight feels balanced and ergonomic for its intended training intensity.

Shipping & Returns

Last Updated: 18th December 2025

1. Service Area

Fitness Gear Online delivers within the United Kingdom only. We do not currently offer international shipping.

For large or bulk UK orders, you may contact us before placing your order.

2. Order Cut-Off & Processing Time

Same-Day Dispatch

Orders placed before 1:00 PM (13:00 GMT) on a business day are processed and dispatched the same day.

Orders Placed After 1 PM: Orders placed after 1 PM, on weekends, or on public holidays will be processed and dispatched on the next working day.

3. Delivery Timeframes

Once dispatched, UK delivery typically takes:
➡️ 1 – 4 business days (Monday to Friday) for all UK regions, including:

  • Mainland UK
  • Scotland
  • Northern Ireland
  • Highlands & Islands
  • Surcharge Zones

Delivery times may vary due to courier delays, seasonal demand, or unforeseen circumstances.

4. UK Shipping Rates (Weight-Based)

Shipping costs depend on order weight and delivery region. Below are your standard delivery rates.

📍 Mainland UK Shipping Rates

Delivery Time: 1–4 Business Days

Weight Range

Price

Up to 30 kg

£4.99

Up to 60 kg

£9.99

Up to 90 kg

£14.99

Up to 120 kg

£19.99

Up to 150 kg

£24.99

Up to 180 kg

£29.99

Up to 210 kg

£34.99

Up to 240 kg

£39.99

Up to 270 kg

£44.99

Up to 300 kg

£49.99

Up to 330 kg

£54.99

Up to 360 kg

£59.99

Up to 390 kg

£64.99

390.01 – 1000 kg (Pallet)

£79.99


Important Note

Some items may have larger packaging (volumetric weight) which can affect shipping cost. In these cases, rates are calculated automatically at checkout.

5. Couriers We Use

Your order may be delivered through one of our trusted courier partners:

  • DPD UK
  • Royal Mail
  • Evri
  • Parcelforce
  • FedEx
  • Yodel
  • Pallet Force (for heavy or palletised orders)

The courier is automatically selected based on weight, size, and delivery location.

6. Tracking & Delivery Updates

After your order is dispatched, you will receive a confirmation email with your tracking number. Please allow up to 48 hours for tracking to begin updating.

If your parcel has not arrived within 4 business days after dispatch, please contact us.

7. Failed Deliveries / Incorrect Address

Please double-check your delivery address during checkout.

If a delivery fails due to:

  • incorrect address
  • recipient unavailable
  • multiple missed courier attempts

➡ Re-delivery fees may apply.

8. Damaged, Missing, or Incorrect Items

If your item arrives damaged or incomplete:
Email: support@fitnessgearonline.co.uk
Within 7 days of delivery
Include:

  • photos of damage
  • packaging
  • your order number

We will arrange a replacement or refund as appropriate.

9. Returns

Please refer to our Return & Refund Policy for full details.

8. Contact Information

Business Name : Fitness Gear Online

Company Name : Ravian Retail Ltd

Address : Unit B Goddard Road, Astmoor Industrial Estate, Runcorn, WA7 1DX, United Kingdom

Email : support@fitnessgearonline.co.uk

Mobile : +44 7367 011128

VAT Number: GB440341045

Company Registration Number : 14050025

Customer Contact : Click Here to Contact Us

Hours: Mon - Fri: 9:00 AM - 5:30 PM  (GMT-LONDON TIME) (Live Chat and Email Support Available)

You may also like