Function: 1. Made of high quality steel material, durable, long service life, convenient and quick to use, compact and portable. 2. Suitable for craftsmen who repair watches, it is a good replacement for old or broken crowns and saves expensive repair costs. 3. This crown replacement part can make the repair of your watch more interesting and you can freely choose according to your favorites. 4. Specially designed for repairing crowns with silver parts for watch repairs and upgrades. 5. It is suitable for watchmakers and watchmakers to repair clocks and is one of the indispensable tools for repairs. Specification: Item Type: Watch Crown Accessories Product material: steel Product color: silver Use: watch parts, watch heads Package list: 5 x watch crowns Note: Please allow 0-1mm / 0-0.04 inch error due to manual measurement. Thank you for your understanding.