Great for mens and womens watches repair. * Material : Stainless Steel. * Material : Stainless Steel. * Size:8mm,9mm,10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,18mm,19mm,20mm,21mm,22mm,23mm,24mm,25mm. * Use to remover the watch spring bar and repair the watch band. * Pins used for Metal Watch Strap Links ,Easy To Install. * Stainless Steel Watch Pins / SPRING BARS with Double Shoulders. * These watch link pins are kept in a transparent plastic box for keeping the 18 different sizes separated and easy to access. * Package includes: Quantity : 1Case (360pcs). * This set has 18 different sizes that will fit most makes and models of watches, and it is easy to install.