50 mm plastic pulley mounted on a circular strong magnet.
50 mm plastic ball bearing pulley mounted on a circular strong magnet.
$19.99 Original price was: $19.99.$13.99Current price is: $13.99.

50 mm plastic pulley mounted on a circular strong magnet.
50 mm plastic ball bearing pulley mounted on a circular strong magnet.
Physics
Electricity & Magentism
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