Bracelet material: Made of superior flexible silicone, this watch bracelet is durable, flexible, resistant to perspiration, soft for the skin, washable, odorless, without discoloration Breathable holes: The fine watch bracelet is designed with 15 breathable holes to improve air circulation and comfort, and it can be adjusted to the best length that adapts perfectly to your wrist, suitable for 5, 5, 5 to 8.6 inches (14 cm to 22 cm) Easy to install: equipped with fast clearance bars, you can quickly remove and install the strap without tools Size selection: Compatible with traditional or intelligent watches with a standard horn width of 18mm, 20mm and 22mm. Please measure with precision the width of your watch's legs before ordering. Size = width of the watch horn Bracelet length: 75mm and 130mm. Thickness: 2.3mm. This strap is thinner than ordinary, light and comfortable to wear straps, a good choice for everyday life and sport