This 20mm silicone watch wrist strap is a replacement part for smart watches, made of high quality premium PC+TPE, soft, comfortable and water-proof to wear. It features a porous design for easy adjustment, a safe metal buckle for secure fastening, and comes in 5 different colors. The strap is suitable for both men and women, perfect for outdoor fitness, sports, any type of workout, or everyday use. It is easy to install and remove, with no tools needed, and is compatible with ID115Plus HR smart watches.