Newtons Cradle Fun Steel Balance Balls Physics Science Desk Toy LED Light

• A futuristic take on this classic desk accessory.
• Bright, multi-color LEDs in each sphere.
• See the laws of conservation of mass and energy expressed in color!
• Experiment with releasing multiple balls at once and observe the effect. Authentic Fun Central Branded, absolutely awesome Cradle Balance Balls.
• The Newton's Cradle makes a fun conversation piece and fits perfectly on a desktop or coffee table.