Compatible with: Only for Fitbit Luxe, not include tracker. the size can be adjusted according to the circumstances of the individual wrist. Made of selected high-quality stainless steel: The strap is beautiful and comfortable. It is abrasion resistance, high temperature resistance, no deformation, non-toxic, odorless and long service life. Easy adjustment: Suitable for wrists from 6.1 inches to 8.7 inches. With the removal tool included, easy to install and remove. Please follow the correct ste