Features:The spring bar is used for connecting the watch and the strap, which is replaceable, super convenient.The spring bar with double flanges, is more suitable for linking the metal watch to its watchband.There are 18 different sizes in one transparent plastic box: 8mm - 25mm; diameter about 1.5mm.Each size includes 12 pieces spring bars, thus there are 216 pieces in total, meeting various demands.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: Stainless SteelColor: SilverQuantity: 216pcs/box (12pcs per size)18 sizes: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mmDiameter: Approx. 1.5mm / 0.06inchPackage Weight: 64gPackage Included:1 x Box of 216pcs Spring BarsNote:Before placing an order, please notice that the item color displayed in the pictures may be slightly different from the real object, due to different monitors or other factors. And please allow 1-3mm error due to manual measurement. Thanks for your understanding.