タイトルまたは説明

newton cradle Features: 1) Dimensions: *8.2**5.2**8.5cm Balls diameter:*2.*3MM 2) Material: chrome iron on the sturdy frame, pedestal is plastic, Five iron balls 3)We are specialized in producing Newton's ***** is a good education toy for kids to learn Physics 4)Our balance ball depend on Newton's gravitation to swing the ball each other, when you pull the forefront impact second ball, the lasted ball will waggle. 4)Client's logo are available 5)You can choose pedestal plastic or wood 6)Packing:Each parts/opp bags/1sets/colorful box/*6sets/ctn