55 cm, Red//65 cm, Blue//75 cm, Yellow
The 360 Anti-Burst Stability Ball is manufactured from high-quality latex free materials with a unique, textured surface to prevent slippage. Each stability ball is designed to meet rigorous testing requirements, ensuring that they can endure even the toughest training routines. In fact, each stability ball has an anti-burst rating of 300 kg (660 lbs.) and can be used with many different pieces of fitness equipment.