The sport silicone watch strap compatible for Fenix 6X/Fenix 6X Pro/Fenix 5X/Fenix 5X Plus/Fenix 7X/Fenix 3/Fenix HR/Tactix/Descent MK1/D2 Delta PX/D2 Charlie smartwatch. Screw Spring Bar Clasp:Instead of the pin spring bar, we use screw spring bar to assemble the clasp. Don't worry about the buckle coming off and hurting your watch. Metal Clasp made of hypoallergenic nickel stainless steel are easy to install and remove.Original 1:1 design, making your watch more unique and outstanding. Its wrist between 7.08inches-9.25inches (180mm-235mm)，Please measure your wrist and make sure the size before you purchase. What we can promise to our customers is that we provide better quality products and customer services. Any problem with the item you receive or any opinion, please don't hesistate to contact us, we will find the best solution to solve.