▶Superior Quality: 100% genuine calf leather strap - soft and comfortable to touch. Slim and light weight design in rich colors, making your watch look much classic but modern from work to casual life. ▶Simple Installation: Premium metal connectors seamless fit with the device as original. When you slide the band into your tracker, you could hear a "Click" sound, then "fell apart" issue 100% solved! ▶Wrist Size: One size of 5.5" - 8.1", suitable for most people, no matter men, women, teenagers, or the aged. Precise multiple alternative holes allow you adjust the suitable size, with comfortable touch feeling on your wrist. ▶More Styles: Classic or elegant, different color to express yourself, making you stand out from any occasion, no matter working, dating or sporting. ▶Notice: Please DO NOT wear this band for longtime underwater activities -- such as shower, swimming, etc. It is recommended to put it in the ventilated place after you exercise sweat.