Speidel Silicone Replacement Black Watch Band in 18mm and 20mm HIGH QUALITY & DURABLE: Soft and lightweight silicone strap,stainless steel watch buckle. CHOOSE THE RIGHT WIDTH FOR YOU With five width options, our straps fit most watches and smartwatches. Just make sure to choose the right width for your watch or it won't fit. Measure your watch's lug width in mm , check your watch manufacturer's website for your watch's specs. ADJUSTABLE FIT  Speidel silicone watch straps will fit wrists from about 5.5" to about 8" around, depending on strap width and watch size. The watchbands will comfortably fit most men and women. If there is an issue with the strap fitting, be sure to reach out to us so we can make it right! TOTAL LENGTH: 8", Including the buckle GREAT FOR ALL OCCASIONS  Strong silicone rubber. Stainless steel buckle. This washable, waterproof watch strap can handle the office, the gym and any adventures trip and look amazing doing it.