• CERROPI Newtons Cradle, Newton Pendulum with 7 Balls, Classic Swing Newton Balance Ball, Science Physics Gadget, Desk Toys & Office Gadgets for Desk Decorations, 30+ Sec Swingtime KWD 12.500
• CERROPI Newton Cradle Balance Balls, 7 Ball Newton Pendulum, Classic Swing Ball, Desk Toy & Accessory, 11 inch, 65 Sec Swingtime KWD 19