Description: 1/4" Tripod Monopod Ball Head Quick Release Plate for DSLR Camera. Compatible with canon, nikon, sony, olympus, panasonic more digital cameras. 1/4" Screw Bottom?suitable for pan/tilt, tripod, and monopod to quickly achieve horizontal movement of the camera. Safety Knob?to ensure the camera safe and quick release. Easy Installation?tighten the locking screw counterclockwise, pull out the safety knob and hold it to remove the gasket. After pressing the gasket, the locking screw can be tightened clockwise to lock. Specification: Material?Aluminum Alloy Diameter?52mm/2inch Height?15mm/0.6inch Package Includes: 1x Tripod Quick Release Plate