BOSU Hydro Ball: A BOSU Hydro Ball is a water-filled kettlebell that uses hydro-inertia to create unstable resistance. BOSU Ballast Ball: This is the more common inflatable exercise ball you may ...

The Franklin Pump Kit comes complete with everything you need to keep your ball inflated to the perfect level at all times. Included in the kit is a 7.5-inch pump with a flexible extension hose ...

Some of the major companies in the Inflatable Exercise Balls market are as follows: Arteesol, Balanced Body, Bigtree, Bosu, CAN DO, CoolBoard, Gaiam, Gonex, TheraBand, URBNFit, Wacces Fitness ...

Confused by inflatable exercise equipment? Femail.co.uk got to grips with four of the most popular types. Here's what our testers thought.