3Pack ShareGoo Metal 3.17mm to 5mm Shaft Adapter Change-Over Motor Axle Sleeve Compatible with Hobbywing HSP 540 550 EZRUN-3656 Motor RC Car Boat Plane : Toys & Games
1pcs Motor Shaft Adapter For Saw Blade Connection Coupling Joint Connector Coupler Sleeve Fit 3.17 4 5 6mm Axle - Power Tool Accessories - AliExpress