DescribeHigh gualityFood grade ABS material, no pressure for cats to bite.43mm43mm "claw control" is different from the traditional rolling ball size on the market, and is more suitable for the cat's "sense of control" of primitive huntingintelligentIn intelligent mode, you can wake up by patting, simulate the escape trajectory of prey, roll and hit obstacles, and then intelligently choose the route to avoidquietGive the cat a strange night and give you a quiet sleep. 90 percent of the cache material package in the outer layer, rolling quiet, day and night, play if you want.bite resistance and durabilitySoft and skin friendly silicone wrap, in addition to rolling quietly, increases friction, and takes into account bite resistance and durability.Products include1 x Gravity Rolling Ball1 x Type-C Charging Line