GB healthy: Made of nylon Velcro for easy adjustment. The unique design of this nylon strap allows the use of large and small wrists. The long side of the strap can be adjusted according to the size of the wrist, the design of the Velcro can be better and more convenient to put on and take off, the appearance is very beautiful, it will give you a good mood. The sticky firmness makes you safer while driving or exercising. Fits wrists 6.2" - 10.6" (160mm-270mm). Comment: 1. Due to different monitor settings and different ambient light, the picture may not reflect the actual color of the item. Thanks for your understanding. 2. If you have any questions about the product, please contact customer service as soon as possible, you will get a satisfactory after-sales solution 3. Due to platform regulations, the color display is incomplete, if you need other colors or widths, please contact customer service Please check the model number on the back of the watch before buying! ! This is important, it allows you to choose the size you want. Compatible models: for Garmin fenix7X for Garmin fenix 6X for Garmin fenix 6X pro for Garmin fenix 5X for Garmin fenix 5X plus for Garmin fenix 3 for Garmin fenix 3HR for Garmin D2 Charlie for Garmin D2 Delta PX for Garmin tactix Delta for Garmin Descent Mk1 for Garmin Descent Mk2 for Garmin Enduro for Garmin Enduro 2