PROIRON Gym Ball Pezziball Exercise Ball Training Ball Fitness Ball & Balance for Core Training with Pump Anti Burst Pilates Ball Durable for Adults Office Pezziballs Gym Balls

"Explosion-proof, tested with 660lbs load to ensure safety during training" "The exercise ball 55cm weighs 2.2lbs, exercise ball 65cm weighs 2.6lbs, exercise ball 75cm weighs 3.1lbs. Heavier than most exercise balls on the market, that's our advantage" "Made from environmentally friendly, hypoallergenic material, anti-microbial, SGS tested, 2mm thick materials are carefully selected, phthalate-free and lead-free, etc." "Free hand pump included, easy to inflate and slowly deflate. Pezzi ball was easy to pump, makes a stable impression" "Suitable for fitness training, Pilates, yoga, gymnastics, core strength, back, aerobic, abdominal training."