Description: Material: Plastic. This round-shaped bracelet block is made from solid plastic and allows you to hold firmly watch bracelets while working on them. This holder is a very useful tool when you adjust the watch band link length. Holder Size: width:27mm,thickness:67mm. Suitable for watchband thickness:3mm,4.5mm,6mm. Package Includes: 1 Piece Watch Band Strap Holder Note: Please allow 1-2mm error due to manual measurement.pls make sure you do not mind before you bid. The colors may have different as the difference display,pls understand