Camera Tripod Quick Release QR Plate Adapter with 1/4"-3/8" Screw for Camera Camcorder Tripod Monopod Ball Head Removable QR plate with 1/4" screw for all DSLR camera . It's simply professional and affordable. Offer one knobs to control the horizontal and socket ball adjustment. It is made by black anodized aluminum alloy. Professional Tripod Ball Head Camera Ballhead plate.