Quick release plates attach to the tripod mount on your camera and allow you to quickly and easily attach and detach your camera from a compatible tripod head. Extra quick release plates allow you to conveniently swap out more than one camera with the same tripod. The quick release shoe is designed to be used with the Velbon PH-249Q Pan Head and CX-444 / CX-460 Mini / CX-Compact / CX-888 tripods.