I-SMILE Fitbit Surge Bands, Original Version Adjustable Replacement Wristband for Fitbit Surge/Wireless Activity Bracelet Sport Wristband Replacement wristband with secure watchband-style closure to keep your Fitbit Surge on your wrist. Size: Large for 6.3" - 7.8" wrist, Small for 5.5" - 6.3" wrist. Available Colors: Black/Blue/Plum/Navy/Teal/Tangerine/Slate/lavender. ATTENTION: Please make sure carefully you reading the assembly instructions before tear down your original Fitbit Surge straps and install new one. Package included: Fitbit Surge strap and Tools.It is easier to replace your old straps and looks like a new watch after replaced, meanwhile it is saved a lot of your costs.Warranty:30 days of free money-back & 12-months of free replaced. The Fitbit accessories band are specifically designed for the Fitbit Surge.All are for Fitbit Surge only ! (Note: Fitbit Surge Fitness Activity Trackers and other parts are not included)