Features:1. The spring bar is used for connecting the steel watch straps, which is replaceable, super convenient.2. The spring bar with double flanges, is more suitable for linking the metal watch to its watchband.3. There are 18 different sizes in one transparent plastic box: 6mm - 23mm.4. About 270 pieces in total, meeting various demands.5. Made of high-quality stainless steel, sturdy and durable, can stand long-term use if it is well cared.Specification:Condition: 100% Brand NewItem Type: Spring BarMaterial: MetalColor: As Pictures ShownQuantity: About 270pcs18 sizes: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mmPackage Weight: Approx. 61gPackage List:1 * Box of Spring Bars (About 270pcs)