Yosoo Spring Bars Watch Wrist Band Strap Link Pins Repair Kit Watchmaker Stainless Steel 8-25 mm 360 Pcs Item type:Spring Bar;Material:Stainless Steel Size:8mm,9mm,10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,18mm,19mm,20mm,21mm,22mm,23mm,24mm,25mm Quantity:Approx 360Pcs;Thickness:approx.1.5mm Package included:1x Case of 360 Pcs Watch Spring Bars Used for Metal Watch Strap Links. Connect the watch band to the case or buckle. Easy To Install.