Features: 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 for head. for Extra quick release plates allow you to conveniently swap out more than one camera with the same tripod. 1/4 inch screw mount fits most cameras and camcorders. for: For Yunteng VCT-668RM 668 690 600 688 590 580 390 60AV VCT-888 800 For Velbon EX-638 CX-888 CX-460mini CX-460 CX-470 CX-570 CX-690 CX-444 DF-50 FHD-52Q QB-4X For Sony D680 D580 VCT-D580RM, VCT-D680RM VCT-50AV VCT-60AV VCT-80AV VCT-R640 VPR1 For SOMITA ST-3540/666 3520 3560 For WEIFENG WT3730 3750 3770 3570 3550 3530 3540 3520 For CAMBOFOTO SAB233 SAB234 SAB223 SAB224 Specification: Material: Plastic Dimensions: 6.2x4.8cm(2.44x1.89in)(approx) Bottom Size: 44x44mm(1.73x1.73in)(approx) Color: Black Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 x Quick Release Plate(other accessories demo in the picture is not included.)