1mm-6mm Aluminum Alloy Coupling Motor Shaft Coupling For RC Car Boat Model DIY
● the Sizes of 1mm - 1mm and 2mm - 2mm Are Different from Others and Are 12 20mm. Electronic Module. ● Material: Aluminum Alloy. ● Set Screw: Use M3 Screws for the 4 Fixing Holes on the Side. Wire & Accessories.