This is an expandable stainless steel watch strap with a lug width of 10-14mm. The spring bars allow for some flexibility in lug width. There are some minor scratches from use. Ultrasonic cleaning has been performed prior to listing, but please refrain from purchasing if you are looking for new condition. Thank you. - Material: Stainless steel - Width: 10-14mm lug width, spring bar attachment is spring-loaded - Color: Silver Thank you for viewing. Please feel free to ask any questions. Thank you. Color: Silver系 (Silver-toned) #WatchStrap #10mm #14mm