Neewer Professional Aluminum Alloy Quick Shoe Plate with 1/4 inch and 3/8 inch Screw for DSLR Camera Camcorder Tripod Monopod, Campatible for Manfrotto 501HDV 503HDV 701HDV 577/519/561/Q5 Professional plate enables switching conveniently and fastly Rubber mat prevent your camera fall off Attaches to any tripod monopod camera and removes rapidly Easily operate plate with 1/4" 3/8" screw for DSLR camera camcorder Campatible for Manfrotto 501HDV 503HDV 701HDV 577/519/561/Q5