Set of 2 Ivation Replacement Quick Release Plate for The Manfrotto 410, 405, 808RC4, 498RC4, 394, 468MGRC4, MH057M0-RC4, MH055M0-RC4, RC4, Precision crafted makes changing cameras fast & easy Allows for perfect balance of most camcorders Grooved rubber pad provides traction Supplied with both 1/4 inch and 3/8 inch threads Engraved scale to help identify the optimal positions