This offer is only the band WITHOUT the middle part for the Fitbit flex! You need one fitjewels bracelet first! Available sizes S-M (5.5-6.5) M-L (6.5-7.5) and L-XL (7.5-9) inches (circumference of your wrist) The leather bands from fitjewels fitting to the Fitbit flex bracelet collection are interchangeable. You can dress up your fitjewels Fitbit bracelet with this band. You only need one box on hand to go with all out leather bands. How it works: You can easily change the band from your fitjewels Fitbit bracelet. All our leather bands have the box for the Fitbit chip attached with small Chicago screws. You can open them with a small screwdriver and change the band fitting to your style. Highlights: Size up to 6 (Small) - up to 7.5 (Medium ) AND up to 8.5 inches (Large) (circumference of wrist) Don't ruin your professional or dressy outfit with a plastic wristband We create stunning and unique pieces that are designed to take you from day to night in best quality.