Tristraps Genuine Leather Watch Strap with Butterfly Deployment sp 12mm 14mm 16mm 18mm 19mm 20mm 21mm 22mm 23mm 24mm Black Brown Replacement Watch Band for Men Women Waterproof Sweatproof

【WRIST FIT AND WIDTH SELECTION】Suitable for both traditional and smart watches with 20mm lugs and flat interface. The applicable wrist range is 125mm-171mm.You should measure width of watch lug or width of current band at connection point. 【Material: 】First layer calfskin,Fine workmanship, ergonomic design,Retains the texture of the original hide 【BUTTERFLY BUCKLE】- Butterfly deployment push button clasp with buckle. Double click the switch,Each one attach 4 Spring Bar Pins and One Spring Bar Repair Tools.Elegant & Luxury Packaging. 【PACKAGING】Double-click the switch to unfold the buckle. Each set of straps will come with 4 spring bar pins and a spring bar repair tool, as well as a wipe cotton cloth, with detailed instructions. The packaging looks elegant and luxurious. 【After sales service】Unconditionally refund or resend with any quality problems, life time friendly customer service,offered by Triton-us