A quick release plate can be kept attached to the camera's base and allows the user to quickly and easily attach or remove the camera from the tripod without having to waste time fumbling with the threaded mount
1/4 inch tripod socket
QB-4W: Length 66mm
Bottom Size: 44mm(1.73") x 44mm(1.73")
Spare Quick release plate Suitable for Velbon CX-444, CX-888, CX-460, CX-460mini, CX-470, CX-570, CX-690, DF-50 SONY VCT-D580RM, VCT-D680RM, VCT-R640