Type: Tools Feature: Watch Strap Screws Item Type: Repair Tools and Kits The thickness of the shaft: 1.3mm The thickness of the cap: 0.8mm Size: 10mm-28mm (length of shaft, no cap included) Color: Silver and gold Material: metal Package Contents: 2 * Box Watch Strap Screws 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.