Toysmith - Toysmith's Euler Disk
$48.00
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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: L x W x H / lb 3"" diam disk, 9"" diam mirror • Batteries not required"
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