Brand
A maker that warns about its own hardness
Exercise balls and foam rollers.
The 2-in-1 roller states that, since EPP rollers are at the upper end of the hardness scale, a beginner may find the pressure too intense.
That is a maker publishing a reason not to buy its product. Every EPP roller on that shelf is firm — it is the material’s whole purpose — and this is the only listing that says where it sits and who it may not suit.
A 33 × 15 cm outer roller with a removable 33 × 6 cm core that stores inside it. The small one reaches an arm or a neck, which a 15 cm cylinder cannot.
The listing also explains why 15 cm is the usual diameter rather than just stating it.
Five sizes 45–85 cm, anti-burst PVC, pump included
A five-size range in anti-burst PVC, with the maker stating the ball will not burst if punctured — a stronger form of the claim than most of this shelf makes.
Best for: Somebody choosing from a full size range and using the ball as a chair
A hollow 33 × 15 cm EPP roller containing a removable 33 × 6 cm inner roller, so a large-muscle tool and a hand-held one nest into one object.
Best for: Large muscles and awkward ones — arms, neck, calves — without two purchases
