Rank #7 in Best Slam Ball 2026: 9 Ranked, and the Labels That Don't Add Up
KK Heavy Duty Slam Ball, 4kg to 10kg
Price and rating as shown on Amazon when we collected them. Both change.
KK's slam ball takes seventh place in this guide. It is a sand-filled rubber medicine ball priced at £17.95, rated 4.5 out of 5 from 114 ratings, and it sits 9th in Amazon's Medicine Balls category. The listing describes a no-bounce ball with a textured, non-slip rubber surface, meant for throwing, slamming, lifting and twisting at home or in the gym.
The awkward part is working out which ball the £17.95 actually buys. The title lists four weights — 4kg, 6kg, 8kg and 10kg — and one bullet describes the set as running "from 4kg – 10kg". Yet the specification fields on the same page say 6kg three separate times: Size 6kg, Item Weight 6 kg, and Colour "Slam ball 6kg". The count fields disagree as well — Number of Items says 1 while Unit Count says 6.0 count — and one of the reviews below describes the ball delivered to that buyer as 4kg. Two of the five bullets are also the identical sentence repeated word for word, so the description is shorter than it first looks.
Everything on this page is taken from the Amazon listing for this product. We have not handled, weighed or tested the ball ourselves.
How those 114 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £17.95 |
|---|---|
| Customer rating | 4.5 out of 5 from 114 ratings |
| Size (as listed) | 6kg |
| Item Weight (as listed) | 6 kg |
| Colour (as listed) | Slam ball 6kg |
| Number of Items | 1 |
| Unit Count (as listed) | 6.0 count |
| Material and construction | Rubber, sand-filled |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Great for exercise and practicing for a fitness test coming up. Good value for the money as I looked at others. The outter material appears soft, yet strong considering it weights 4kg. I would recommend this item.”
Verified purchase“This medicine ball seems to be well made as well as being the right weight for the exercises I wanted to use it for.”
What it is up against
The rivals it was ranked against in Best Slam Ball 2026: 9 Ranked, and the Labels That Don't Add Up.
Questions people ask
What weight is the KK Slam Ball?
The title lists 4kg, 6kg, 8kg and 10kg, but the Size, Item Weight and Colour fields on the same listing all read 6kg. The listing does not say which of those weights the £17.95 price covers.
Does £17.95 buy one ball or six?
The listing contradicts itself. Number of Items is given as 1, while Unit Count is given as 6.0 count. Nothing on the page explains which figure applies to the price shown.
Does the KK Slam Ball bounce?
The bullets say it is filled with sand, that it will not bounce, and that however hard it is thrown it will not roll away, so the workout continues without chasing it.
How well rated is it?
It scores 4.5 out of 5 from 114 ratings. The star breakdown shown on the page adds up to 100, made up of 76 five-star, 13 four-star, 5 three-star and 6 one-star ratings.
What is the KK Slam Ball made of?
Material Type is listed as rubber and Construction Type as rubber, sand-filled. The bullets describe a textured, high-grade rubber surface intended to keep the ball in a firm grip.
Where is the KK Slam Ball made?
Country Of Origin is listed as China, and the brand and manufacturer are both given as KK.
Comments
Reader comments are not checked against the manufacturer's claims above.
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