General description 4 Box Watch Repair Tools Set includes an assortment of watch strap screws, friction pins, clasps, straps, bracelets, and rivet ends, suitable for various watch repair needs. Technical specifications Type: Tools Feature: Watch Strap Screws Item Type: Repair Tools and Kits Thickness of the shaft: 1.3mm Thickness of the cap: 0.8mm Size: 10mm-28mm (length of shaft, cap not included) Color: Silver and gold Material: Metal Package Contents 4 * Box Watch Strap Screws Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.