Description: Material: Stainless steel, it is solid and high hardness,durable; Set of 18 different sizes from 8mm-25mm watch band spring bar pin ,completely and Conveniently; These pins are designed to fasten the watch band, help you change watch straps & watch buckles without damaging your watch secondly; It is your effective helper when you repair your watch straps or other watch accessories replacement that you need; The necessary tools for watchmakers & watch enthusiast or people who want to repair his watch by himself; Package Includes: 1 Piece Box Watch Strap Spring Bar