1、The 1/4in screw on the top is compatible for most cameras and you can securely attach your camera onto it. 2、Bottom has a 1/4in screw hole and it will be a 3/8in thread after removing the 1/4in screw nut away, which is convenient to mount your camera on a tripod via the hole. 3、Aluminum alloy construction delivers outstanding stability and durability. 4、It allows quick connection and release, very convenient to use and the operation is easy. 5、It will quickly screw onto your tripod to properly and securely position your camera for the best shooting angle. Features: The 1/4in screw on the top is compatible for most cameras and you can securely attach your camera onto it. Bottom has a 1/4in screw hole and it will be a 3/8in thread after removing the 1/4in screw nut away, which is convenient to mount your camera on a tripod via the hole. Aluminum alloy construction delivers outstanding stability and durability. It allows quick connection and release, very convenient to use and the operation is easy. It will quickly screw onto your tripod to properly and securely position your camera for the best shooting angle. Specification: Condition: 100% Brand New Material: Aluminum Alloy Color: Black Screw: 1/4" Thread: 1/4" & 3/8" (After removing the screw away) Size: Approx. 5 * 7.3 * 2.2cm / 2.0 * 2.9 * 0.9in Weight: Approx. 143g Packing List: 1 * Quick Release Plate Other devices are not included.