High-quality material: 100% leather strap. the natural leather texture gives the strap a stylish appearance and texture. The inner lining of the strap is also made of calfskin, ensuring comfortable wearing and not easy to wear. Fashionable design; Strap adopts fashionable and simple style design, suitable for men and women. It can give a stylish look on any occasion. With stainless steel buckle (silver). The strap adopts a precision connector, which is easy to install and remove. Strap size; long strap size is 4.92in, short strap size is 2.95in. Suitable wrist size is 5.5in-8.0in. Please refer to the picture. Compatible models; compatible with all models of I@TOUCH AIR 4 41mm / 46mm / Air 3 44mm Smartwatch