-The coupling is great for connect your motor of 3mm to 3mm shaft to the wheel.
-Can be used in electric car toy, robot, etc..
- Product Name: Coupling Joint; Material: Copper
- Size: 20mm x 9mm/0.8″ x 0.35″(L*D); Type: 3mm to 3mm
- Side Thread Diameter: 2.5mm/0.1″; Fixed Type: Clamp
- Main Color: Gold Tone; Net Weight: 9g
- Package Content: 1 x Coupling Joint, 5 x Screws, 1 x L Bar
