ITEM NAME:6mm to 10mm Aluminium Alloy Motor Shaft Coupling Joint Connector, Aluminum K2M2 6mm to 10mm Aluminium Alloy Motor Shaft Coupling Joint Connector, Aluminum K2M2 Color: blue Size: 25 x 16mm/1 x 0. 63 inch (L*D) Material: Aluminum Alloy Net Weight: 13g Package Content: 1 x Coupling Joint 4 x Screws 1 x L wrench Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.