uxcell 2pcs Shaft Coupler 3mm x 3mm Connector Adapter for RC Airplane Boat Motor L20XD9

Thread Size: M3; Country of Manufacture: CHINA
Material: copper; Net Weight: 16g
Package Content: 2 x Shaft Coupler with installing parts; Main Color: Gold Tone
Shaft Usage: 3mm to 3mm/0.12 inch to 0.12 inch
Total Size: 20 x 9mm / 0.79 inch x 0.35 inch (L*D)