: High quality Stainless steel universal joint coupling. Brushless motor rc boat use. motor : 4mm. Flexible : 4mm. We will try our best to solve the issue.
Universal Joint Coupling M5 / M1/4" to 4mm Stainless Steel RC Model Boat Scale
universal joint coupling 3.18mm to 4mm Stainless steel rc model boat scale 46
Steel Universal Joint Coupler 3mm to 3.175mm 4mm to 4mm for RC Boat
Steel Universal Shaft Coupling 3mm 3.175mm 4mm 5mm 6mm Motor Coupler
RC Model Metal Cardan Joint Gimbal Couplings Double Universal Joint Screw #1419
RC Boat Flexible Shaft Coupling 4mm to 3.17mm 4mm 5mm 6mm Stainless Steel
