Bear brand watch strap, attachment width 17-22mm, made of stainless steel. The spring bar attachment part is spring-loaded, allowing it to fit a wide range of lug widths. The black part in the long direction near the center of the strap is where the strap is painted black. It is not a stain. There are minor scratches due to use. Although ultrasonic cleaning has been performed for the listing, please refrain from purchasing if you are looking for new quality. Thank you. [Manufacturer] Bear [Size] Attachment width 17-22mm [Color] Two-tone color of stainless steel and black [Material] Stainless steel Thank you for viewing. Please feel free to ask any questions. Thank you. #watchstrap #Bear #17mm #22mm