Toysmith Euler's Disk

Features:

  • Spin science into art

  • You won't believe your eyes or ears

  • Disk will spin faster and louder the longer it goes

  • Just give it a spin and gravity does the rest

  • A hypnotic display of light and sound

  • Patented 3" diameter chrome-plated steel disk

  • Creates a hypnotic display of light and sound as it rotates