【Textured Surface】Diamond textured on the top of strap, stylish and anti-scratch. Built-in Groove design helps to dissipate moisture and improve airflow. No more worry of erosion or stinking 【Easy Installation】Fullmosa rubber watch strap features a quick release strap, simply slide the spring bars with your finger to pop your strap in and out in seconds.If you still don't know how to install it, please contact us, we will provide instructions.