A hypnotic display of light and sound that spins science into art. The 3" diameter chrome-plated steel disk will spin faster and louder the longer it rotates. Just give it a spin and gravity does the rest. Includes Disk, 9" concave mirror base and 9 pieces of holographic, magnetized foil. 6 disks included per pack.

• Age Grade: 8
• Product Dimensions/Weight: 9.37 L x 9.85 W x 1.65 H / 2.02 lb
• Inner Pack Dimensions/Weight: 10.60 L x 10.10 W x 10.70 H / 13.40 lb
• Made In: Taiwan
• Batteries not required