Specifications:Color: Purple, Light Blue, Blue, BlackNote: Please kindly leave us a PAYPAL NOTE specifying your favorite color, otherwise we will send it in Random.Wrist Circumference: Approx. 16.1-21cm/ 6.34-8.27" (Adjustable)Band Width: Approx. 1.5cm/ 0.59"Material: SiliconeCompatible With: For Fitbit AltaLight weight, perfect fit when you're doing sportsEasy to install and remove, no tools neededConvenient to adjust the length to fit your wrist flexiblyFashion look, ideal for sports fans, business users, etcNote: Watch Band ONLY.Package Included:1 x Watch Band Strap