XINXU The link cotter pins comes with 18 sizes from 6mm to 23mm, each size 20pcs, meet your various needsWatch link cotter pins for watchmakers, collectors durable, portable, practical, convenient and very easy to useStainless steel watch link cotter pins with double flange, pins applied for metal watch strap linksAll watch band link cotter pins in assortment are 1.0 mm thick, suitable for most watchesThose watch link pins are kept in a transparent plastic box for keeping the 18 different sizes separated and easy to accessDescriptionStainless Steel watch pins spring bars with double flange, used for watch strap links. 360pcs watch band strap link pin spring bars in 18 different sizes, and each size includes 20 pieces: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm.FeaturesWatch pins-Color: Silver.-Material: Stainless steel.-Size: 11x6.2x1.4 cm/4.33x2.44x0.55 inch.Made of stainless steel for strength and durability, keep your watch safe.Double shoulder design allowing you to quickly and easily insert and remove for repair or adjustment.Package Including360 * Watch pins1 * Storage box