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Ring And Disk.

Simple materials of the same mass and diameter - a Steel Ring and Wood Disc, each 3" across - demonstrate mass distribution in rolling bodies. Roll them together down an incline and time which is faster. Instructions included. Weight: 1 kg.

611-1215

$15.59

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Simple materials of the same mass and diameter - a Steel Ring and Wood Disc, each 3" across - demonstrate mass distribution in rolling bodies. Roll them together down an incline and time which is faster. Instructions included. Weight: 1 kg.

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