This is a replacement strap for the Tissot PRX. Although not a genuine product, it has a lug width of 12mm, making it compatible with the 40mm model. Despite the PRX's popularity, the unique attachment method makes replacement straps scarce, making it difficult to casually enjoy changing straps. I ordered this through an acquaintance, but I made a mistake with the size and couldn't install it, so I'm selling it. *Because the watch I have is 35mm* - Color: Black - Material: Rubber - Included: Spring bars (quick-release type) I couldn't confirm the operation because I couldn't install it, and although it's unused, it has been stored, so please refrain from canceling after purchase.