# Amazon Basics Slam Medicine Ball, 4kg

Source: https://www.ranked10.co.uk/fitness/best-slam-balls/amazon-basics-slam-ball-4kg
Ranked #3 in "Best Slam Ball 2026: 9 Ranked, and the Labels That Don't Add Up": https://www.ranked10.co.uk/fitness/best-slam-balls

- Price: £17.84 (checked on Amazon UK on 2026-09-18)
- Amazon rating: 4.5 from 415 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0DP7R8F5W?tag=ranked10-21

The Amazon Basics Slam Medicine Ball for Exercise is the third ball in our slam ball guide. It is listed at £17.84 and holds a 4.5 rating from 415 ratings, and Amazon's own best-seller data puts it first in the Medicine Balls category with an overall Sports & Outdoors rank of 1,194. The listing describes a heavy-duty PVC ball with a sand-filled core, a textured non-slip surface and a dead-weight design that keeps it from bouncing back at you during CrossFit and HIIT work.

The weight is where this page stops agreeing with itself. The product name carries 4kg, the Size field says 4kg, and the model number is GYCOSB-04. The Item Weight field on the same page says 6.8 kg — 2.8kg more than the ball is called everywhere else, and no line on the listing explains the gap. The rating breakdown is the second loose number: the five-star, four-star, three-star and one-star counts add up to 100 ratings, while the 4.5 headline is drawn from 415. Every figure below comes from the Amazon listing, not from our own handling or weighing of the ball.

## Specification

| Field | Value |
|---|---|
| Price | £17.84 |
| Rating | 4.5 out of 5, from 415 ratings |
| Best Sellers Rank | 1,194 in Sports & Outdoors; 1 in Medicine Balls |
| Size (as listed) | 4kg |
| Item Weight (as listed) | 6.8 kg |
| Item Diameter | 7.87 inches |
| Material | Polyvinyl Chloride (PVC) |
| Model Number | GYCOSB-04 |

## Questions people ask

**How heavy is the Amazon Basics slam medicine ball?**

The listing gives two answers. The product name, the Size field and the model number GYCOSB-04 all point to 4kg; the Item Weight field says 6.8 kg. Nothing on the page says which figure applies to the ball you receive.

**What is it made of?**

The bullets describe a heavy-duty PVC shell with a sand-filled core, seamless construction and a textured non-slip surface. The Material Type field lists Polyvinyl Chloride (PVC).

**Does it bounce back at you?**

The listing says the sand-filled core absorbs powerful impacts and slams while preventing unwanted bouncing, and describes the design as dead weight with balanced weight distribution.

**What size is it?**

The Item Diameter field lists 7.87 inches. The Size field says 4kg.

**What training is it intended for?**

The bullets name CrossFit, HIIT and strength training, for core strength, explosive power and cardiovascular endurance in home gyms and fitness centres. The Sport Type field says Slamball and the Age Range Description says Adult.

**How is it rated?**

4.5 out of 5 from 415 ratings. The breakdown shows 78 five-star, 12 four-star, 5 three-star and 5 one-star, which adds up to 100 ratings rather than the 415 behind the headline score.