Premium Material: Bracelet is made of high-quality 304 stainless steel, high-tech surface, while the bracelet guarantees durability, it looks luxury and nobility. Bracelet Width & Length: Compatible with most of our ( traditional or smart watch) which use 14/16/18/19/20/22/24mm spring bar. The length is from 130mm to 180mm, the strap length is adjustable with the tool. Unique&Design: The strap is designed with refined steel links and double button insurance folding clasp on both sides, stainless steel material makes your watch very fine. Size: 20mm - Samsung Galaxy Watch 42mm (does not apply to Samsung Galaxy 4 Classic/Galaxy Watch 4); Samsung Gear S2 Classic (Not applicable to Samsung Gear S2). Packaging1* Watch Strap,1*Spring Bar Tool,1*Manual,&1*QC Card Polishing and Wire Drawing Process: When combined of grinding and polishing, the grinding process is used, and the polishing process is used on both sides. Classic Double Press Butterfly Clasp: The buckle is made of 304 stainless steel and presses the buttons on both sides. The closure is easy to open: the edges are rounded and do not scratch the skin. All-steel joints: tailor-made and elegant.