10pcs 0.5M Plastic Gear 7/8/10 Teeth Toy RC Model Car 1mm/2mm Shaft Motor Transmission Pinion Gear 6mm Worm Gear Helical Gears

10pcs 0.5M Plastic Gear 7/8/10 Teeth Toy RC Model Car 1mm/2mm Shaft Motor Transmission Pinion Gear 6mm Worm Gear Helical Gears

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