Coobes Compatible with Apple Watch Series 9 8 7 6 5 4 3 2 1 SE 45mm 44mm 42mm leather band strapsFeatures:1.Size: Designed for 6.3"-8.07" (160mm-205mm) wrist2.Connectors: Upgraded adapters provide more secured connection between the leather band and watch. Not like the original adapters where the screws needed to be tighten every so often to prevent the bands from falling off.Premium Tanning: * Leather are fully tanned (not partially tanned) with premium oils. * It won't dry or crack unlike other partially tanned leather.FAQ: Q: Does the watch get continuous good readings of mine steps, heart rate when I wearing this band?A: Yes. Unobstructed Watch Optical Pulse Sensor (PCB) opening. Your watch still have contact with your skin so you can monitor your heart rate and steps. Q: What type of metal is used for the connector and buckle?A: It is stainless steel. The metal won't rustQ: Why it is more expensive than the ordinary leather band A: The crazy horse cow leather is devoid of any chemical substances in manufacturing process. Since it is the vegetable-tanned Leather, which is in high-cost and high-quality.Q: What is Full grain Crazy-Horse Cow LeatherA: It is also known as oil immersed leather or crazy cattle cow leather. It takes the high-class grown-up cow cattle leather as the raw material, which is completely vegetable-tanned. Vegetable tanning is a kind of technique in processing raw leather, in which the original characteristics of cow leather are remained at most, with all the scratches and spots reserved. The surface of the leather will change its color if you gently stroke the surface. As time goes on, it will become as bright and lustrous as a mirror with better handle, smacking of strong retro style.