YJ421X Stylish design and brand new. Made of high quality plastic material. This amazing little ball is motorized and roll/wiggles around like it is alive. The furry weasel wrestles the ball and flips around it as it rolls. Also a great toy for pets， both dogs and cats. Watch them scurry around after the ball， trying to grab it away from the ball. Battery requirement: 1*AA Battery (not included)   Package Details Weight: 141.24 g Size: 11.5*9.5*8 cm Package Includes 1 × Motorized Rolling Chaser Ball Dog Cat Pet Kid Toy