Perfect fit: replacement strap for Suunto Core material: made of durable rubber, waterproof, more durable, flexible, and comfortable than other straps, including original ones The strap end buckle uses a knob screw end buckle Includes screws and screwdrivers: the watch strap includes a DIY tool hex screwdriver, comes with 2 screwdrivers and 2 screws for easy installation in 3 minutes or less Hole design: 15 holes in total, allowing adjustable sizing to fit individual wrist conditions Note: Due to different monitor settings and lighting conditions, the actual color may vary slightly from the image Please verify product dimensions and specifications in the title and description to ensure compatibility We want you to be completely satisfied with your purchase. If you have any questions or concerns, please we are here to help and will do our best to assist you