[Easy Watch Battery Replacement Kit]-- This kit consists of watch case opener, spring bar tool, cleaning cloth. It can help you open the watch cover to replace the watch battery and change the watch strap.Anti-scratch film function: can help reduce the risk of the watch being scratched by the caseback removal tool.Applicable phenotypes: The Lid Detector only works with swivel-open lids, not other lid-open phenotypes.Use of the case-back decapper: The case-back decapper can be used in a range of 15-60 mm. Adjust the drilling distance to fit the grooves on the back of your case by turning the dial.Colour:blueMaterial:MetalSize:20x11.9x1.5cmPackage Contents:1 x Watch tool case opener1 x Screwdriver(random color style, don't accept the specified) 1 x Cloth(random colors, don't accept the specified color)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.