Build a Pulley Kit
$11.95
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Low friction modular pulleys snap together with interlocking brackets. Connect up to 6 for an exciting lab in simple machines. Tough ABS plastic brackets, 2" diameter plastic sleeves.Low friction modular pulleys snap together with interlocking brackets. Connect up to 6 for an exciting lab in simple machines. Tough ABS plastic brackets, 2" diameter plastic sleeves.
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