PROIRON Extra Thick Exercise Ball 55cm 65cm 75cm, Anti-Burst Gym Ball, Swiss Ball with Pump for Yoga, Pilates, Fitness.

【Anti-burst system】 This exercise ball is made of high-quality PVC material and Anti-burst honey comb structure. Anti-burst system mean PROIRON exercise ball only slowly deflate instead of bursting when exercise ball is pierced by sharp objects

【Extra thick exercise ball】This exercise ball have thicker wall in 2mm than normal yoga ball (withstand up to 300kg), made with top quality material, free of BPA & heavy metals