Features:It includes 20 watch spring bars in the package, absolutely meeting your need. The bars feature tight springs and very pronounced tips at each end that fit tightly into the holes on the watch case. These pins can improve the feel of the watch band. It feels more stable.These are a little sturdier than the ordinary pins. They are a must have for watchmakers and jewelers who work on watch bands and watch clasps. Specification:Material: SteelColor: Shown As PicturesOptional Size: 1.8*19, 1.8*20, 1.8*22, 1.8*23, 1.8*24Size Width Length 1.8*19 1.8mm 19mm 1.8*201.8mm20mm 1.8*221.8mm22mm 1.8*231.8mm23mm 1.8*241.8mm24mm Weight: 5gType: Repair Tools & KitsPackage List:20 * Watch Spring Bar