43 x 43mm drop-in bottom fitting. Allows quick attach and detach of camera from the tripod.- Quick Release plate mounts on the tripod allowing you to attach DSLR Camera or your cellphone with a tripod clip. Square bottom design helps you to easily attach and detach it from tripod top.- Rubberised Mesh Shape Surface To Hold Your Camera and Tripod Clip Tightly.- Tripod Plate Head with a size of 60x45mm and has a 1/4" screw to attach camera or tripod clip.- Compatible with Sony D680 580 VCT-580RM, VCT-680RM, VCT-50AV, VCT-60AV, VCT-80AV, VCT-R640, VPR1; For Somita ST-3540 /666 3520 3560, for Velbon CX-444, CX-888, CX-460, CX-460mini, CX-470, CX-570, CX-690, DF-50.