Ideal for pelvic floor exercises, the ball will enhance your Pilates workout and help develop strength, endurance and concentration as well as promotiing relaxation and coordination. The balls are anti-slip offering excellent grip. Ball size is down to preference though its common to have all three sizes for greater diversity. Features: Material: DINP PVC (Latex Free) Colour: Graphite only Safety: Factory tested as burst resistant at 100 Kg SPECIFICATION: Brand Fitness Mad Usage Home Use, Commercial Use Condition Brand New Warranty 12 Month Warranty