Feature:1. 0.9mm Thickness watch winding stem special designed for watch movement part replacement and repairing.2. One of the professional watch repairing tools, suitable for repairmen and amateurs to save expensive repair costs.3. Small and convenient, easy to carry and convenient transportation, exquisite workmanship, no scratching for watch.4. Made of quality steel material, effectively resist oxidation, prevent rust and has long service life.5. Silver color design and including 100pcs winding stems of the package to meet your demands.Specification:Item Type: Winding StemsMaterial: Steel Length: Approx. 12mm / 0.5in(manual measurement, please allow a little error)Color: SilverApplicable People: Watch Maintenance professionalsApplication Scenario: For the replacement of the watch movement winding stems Package List:100 x Watch Winding Stems