1. 20mm leather strap compatible with Amazfit Bip U Pro watches. (And fits any watch with 20mm bands) 2. Material and workmanship: made of high quality silicone leather strap with stainless steel metal clasp. Stylish and unique, smooth leather surface, super soft and comfortable. 3. [Easy Installation and Length Adjustment] With quick release watch lock pins make it easy to install and remove. Multiple alternative holes for adjustable length, you can easily adjust the length to fit your wrist without tools. 4. [Strap Maintenance] Please avoid immersing the leather strap frequently in water, it is recommended to avoid contact with water, oil, coffee and milk. Please dry it with a soft cloth after getting wet. 5. Perfect gift: a variety of colors for you to choose, stylish and convenient. It is very suitable as a gift for birthdays, Valentine's Day, Mother's Day, Christmas, Thanksgiving, etc.