Metal Cardan Joint 10mm-225mm DIY Universal Joint Coupling Shaft Motor Connector with Keyway Couplings Shaft Hardware Features: 100% new and high quality. This joint or coupling connects rigid rods whose axes are inclined to each other. Made of premium metal material, it is durable and has long service life. It is commonly used for shafts that transmit motion. Widely used for connecting model cars, model ships, robots, etc. 15*32*85mm Specification: Material: Metal Inner Diameter: 15mm / 0.6in Outer Diameter: 32mm / 1.3in Length: 85mm / 3.3in Weight: 344g / 12.1oz (approx.) Package list: 1 * Universal Joint 2 * Screws 25*49*108mm Specification: Material: Metal Inner Diameter: 25mm / 1in Outer Diameter: 49mm / 1.9in Length: 108mm / 4.3in Weight: 1010g / 35.6oz (approx.) 14*28*70mm Specification: Material: Metal Weight: Approx.214g/ 7.5oz Length: Approx.70mm/ 2.8in Inside diameter: 14mm/ 0.55in Outside diameter: 28mm/ 1.1in 12*24*56mm Specification: Material: Metal Weight: Approx.128g/ 4.5oz Length: Approx.56mm/2.2in Inside diameter: 12mm/0.47in Outside diameter: 24mm/0.94in 10*20*45mm Specification: Material: Metal Inner Diameter: 10mm / 0.4in Outer Diameter: 20mm / 0.8in Length: 45mm / 1.8in Weight: 68g / 2.4oz (approx.) 16*32*70mm Specification: Material: Metal Inner Diameter: 16mm / 0.6in Outer Diameter: 32mm / 1.3in Length: 70mm / 2.8in Weight: 292g / 10.3oz (approx.) _x000D_