uxcell 5mm to 5mm Aluminium Alloy DIY Motor Shaft Coupling Joint Connector Size: 25 x 14mm/1" x 0.55"(L*D); Country of Manufacture: CHINA Material: Aluminum Alloy; Net Weight: 12g Package Content: 1 x Coupling Joint 4 x Screws 1 x L Bar; Main Color: Blue Type: 5mm-5mm; Side Thread Diameter: 3mm/0.12" Fixed Type: Clamp