Eachbid Smart applied New 270Pcs Watch Band Spring Bars Strap Link Pins Tools Color :Silver. Thickness : approx. 1.5mm. Pin Color :Silver. Pins 6mm,7mm,8mm,9mm,10mm,11mm,12mm,13mm, 14mm,15mm,16mm,17mm,18mm,19mm,20mm,21mm,22mm,23mm Pins used for Metal Watch Strap Links.