Video Fluid Head, VT-3510 Heavy Duty Camera Tripod Drag Pan Tilt Head with Quick Release Plate 1/4&rdquo; and 3/8&rdquo; Screws for DSLR Cameras Video Camcorders - The side lock system allows the camera and sliding QR plate to click quickly into the head from above, instead of needing to be aligned and slid in from the back. - 1/4"-20 screw on the quick release plate for mounting most DSLR cameras such as Canon, Nikon, Sony, and 3/8" screw hole at the bottom for being mounted on most tripods, monopods. - The special design of security locking knob can prevent the equipment from falling off accidentally. - Built-in bubble level indicator ensures easier management of the horizon level. - Wearable and non-skid bar design can prevent the shooting from shaking to improve the stability.