• Spin science into art
• Disk will spin faster and louder the longer it goes
• Creates a hypnotic display of light and sound as it rotates
• Just give this fidget toy a spin and gravity does the rest
• Use this office toy to reduce anxiety and increase focus
• A giftable mind game to promote an interest in science
• Patented 3" diameter chrome-plated steel disk

Fascinating desktop illusions! Spin the holographic disk on the mirror. Does it speed up? Listen to its rhythmic sounds. Why does the humming get louder as the speed of the disk increases? This patented 3" Diameter chrome-plated steel disk creates a hypnotic display of light and sound as it rotates. Includes Euler's disk, 9" Concave mirror base and nine pieces of magnetized holographic foil. Complete with instructions and the scientific answers!

From the Manufacturer

Give the Euler's Disk! This patented 3" diameter chrome-plated steel disk creates a hypnotic display of light and sound as it rotates. Includes Euler's Disk, 9" concave mirror base and nine pieces of magnetized holographic foil.