Andoer 501PL Sliding Quick Release Plate 1/4"-20 & 3/8" Screws for Manfrotto 501HDV 503HDV 701HDV MH055M0-Q5 501PL Quick Release Plate for 701HDV 501HDV 503HDV MH055M0-Q5; Replaces old part #3433PL. Compatible with heads that use the RC5 quick release system. It comes supplied with one 1/4"-20 and one 3/8" camera screw each, and features a location (video) pin. Material: Aluminium alloy, Precisely engineered, black anodized, sealing it against corrosion and abrasion. Rubber pad to protect your camera