1.Material: This item is made of premium soft and durable silicone material with adjustable stainless steel buckle, Smooth surface is good touch, Lightweight and stretchy will help you get rid of firming. 2.Suitable Size: Standard size of Fitbit Alta HR Accessory WatchBands, According to your wrist size there are many holes you can coordinate the fit width easily. 3.Unique Design: Provide different color choice for you, Flexible fastening system advoid falling off, Round holes allow it to breathe easily all day. 4.Install: With lugs on both ends, The band can lock onto Fitbit Alta precisely and securely, Easy and direct installation, One button remove which has no issue with absorbing sweat or water and will not hurt the skin or snag cloths. 5.Sports Stylish: It\'s much lighter,thinner band and easy to put on and take off, Easy to set up and use, Which has no problem with exercising such as Biking, Rowing, and Lifting weights.