Feichao 20 * 4 * 1.9 5Pcs Small Plastic Pulley Wheel Fitting Science Technology Production Materials DIY Model Accessory
$3.32
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20 * 4 * 1.9 5Pcs Small Plastic Pulley Wheel Fitting Science Technology Production Materials DIY Model Accessories You can use as a wheel or wheel drive , Model of the transmission mechanism Features: Diameter :20mm Hole Diameter : 1.9mm(for 2mm shaft) Thinckness : 4mm Package include : 5pcs pulley
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