Description: Excellent educational science gadget. These Newtons Cradle are environmentally friendly, non-toxic and are designed to last for a long time 5Pcs frosted glass balls that add cool luminescent light to a desktop. Swing one, two or three end balls and the changing colors will keep you entranced for hours with multiple color changing modes from blinking to cascading Usage: collection, business gift, birthday gift, home ornaments, office desk decoration, teaching tool and for decompression Requires 4 pieces 1.5V AA batteries(not included) Material: glass and plastic Size Chart: LxWxH: 14.9x11.4x15.4cm/5.9x4.5x6.1in Package Includes: 1 Set Light up Newtons Cradle Balance Balls Toy
