1. Compatible with Fitbit Blaze Watch Only --- Large Size: 6.7- 8.1 inch , Small Size: 5.5-6.7 inch, Width:24mm, with well assembled watch band and Metal Frame. 2. Easily Install --- Easy to assemble and remove through pins in 10 seconds, no tools needed, personalize your blaze watch with this refined strap. 3. Smooth Silicone Material --- Soft band compatible with fitbit blaze from scratches, perfect protect your fitness tracker while outdoor sports or daily working（Skin allergies are used with caution）. 4. Match Frame --- Premium Stainless Steel frame, easy access to all controls, buttons, sensors and Fit Blaze features, your best choice for blaze accessories. 5. Worry-free after-sales service: We provide a 5 years worry-free and free lifetime technical support globally. You can get an exchange or refund if your band has any quality issues within 5 years. Simpeak Sport Band Compatible with Fitbit Blaze Smartwatch Sport Fitness, Silicone Wrist Band with Meatl Frame Replacement for Fitbit Blaze Men Women, Small, Black Band+Silver Frame，Small Size: 5.5-6.7 inch