2PCS 0.2M 30/32/33/36/39/40/44/50 Teeth Copper Gear 0.7/1.2/1.3mm-Thickness Mini 1/1.8/2/3mm Hole QUALITY GEAR RC Model DIY

2PCS 0.2M 30/32/33/36/39/40/44/50 Teeth Copper Gear 0.7/1.2/1.3mm-Thickness Mini 1/1.8/2/3mm Hole QUALITY GEAR RC Model DIY

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