Wangdd22 5mm to 8mm Shaft Rigid Motor Wheel Coupling Coupler Alumlnum Casing With Screw Pack of 4</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Material : Aluminum alloy</li><li>Inner d1*d2 : 5mm x 8mm</li><li>Outer diameter : 14mm</li><li>Total length : 25mm</li><li>Scwer hole diameter : 4mm</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41iKRpsTusL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41Ml%2ByEgxzL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31oIm6WwsaL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41IUbPLywZL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41dagCLuxoL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41o1SgN0zxL.jpg' noproxy></br>