... : 1,500g and 1,600g 3) Color: red, Gym roller ball (our newest product):1) Material: PVC2) Weight: 900g3) Color: red ... , yellow, blue, white, black4) Used to strengthen and tone muscles and bones of the hips, back, legs, hands, arms ... ,56*30*30cm EN71,ISO:9001,PAHS,phthalate free Gym Ball (yoga ball / fitness ball)