★heavy duty anti-burst rating can match any heavyweight: anti-burst tested,professional grade pvc material, extensive testing, and a unique anti-burst design provides for the highest quality exercise balls available on the market. every exercise ball can withstand up to a 2cm cut with out explosively deflating.
★ thick pvc casing provides optimum puncture resistance: packed with non-toxic pvc material.our exercise ball is manufactured using gym quality standards,the exercise ball weight: 55cm-900g,65cm-1100g 75cm-1300g.
★ non-slip ribbed body stays put with skin contact: the pvc body has a matte surface with horizontal ribs contoured all around it -- making it easy to hold without slipping while tossing, bouncing or squeezing the ball even with profuse sweat.
★ whether used once a day for home workouts, all day as an office seat, or const