Features:The push-in type rear cover (bottom cover) push-in type watch usually has a small mouth at the 9-position or 11-point back cover position of the bottom cover. Or some watches have 6 notches and a knives mouth, which is a screw bottom, which is also open. Note: Many models of watches have a back cover at 1 o'clock.How to use: Place the file in a mouth and push it out.Prevent slipping: wrap the watch with a piece of cotton cloth to prevent slipping in the hand, and stick a transparent tape at the edge of to prevent the bottom cover from being scratched.Feature:Product Name: Repair ToolItem Type:Repair Tools & KitsType:ToolsColor: red + yellowMaterial: alloy steelProduct Name: Repairing the sicklePackage Contents: 1*Watch Tool setOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.