Trideer Yoga Ball Exercise Ball, 5 Sizes Ball Chair, Heavy Duty Swiss Ball for Balance, Stability, Pregnancy and…

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EXTRA THICK AND ANTI-BURST: one of the highest density exercise balls in the market. 2000 micrometers in thickness and can resist up to 2200 lbs.
HIGH QUALITY MATERIAL AND ANTI-SLIP: Professional quality with non-toxic PVC material, free of BPA & heavy metals