Features:

• 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.

Specification:

• Type: LED Newtons Cradle Desk Toy
• Battery Box Size: 4 x AA batteries (not included)
• Features: LED Light
• Material: Frosted glass + fishing line + plastic base
• Dimension: 12 x 12 x 8.8 cm

Package Includes:

• 1 × Newtons Cradle Fun Steel Balance Balls