For Fitbit Alta Bands, Wearlizer Silicone Smart Watch Replacement Strap Wristband for Fitbit Alta, w/Classic Buckle - Grey Designed for Fitbit Alta Features in classic metal buckle; Fits 6.6inch to 8.8inch (16.8-22cm) wrist size Various colors make it easy to create a look of your smart watch that fits the occasion Durable and soft silicone guarantee you a comfortable wearing experience when doing sport, working or outdoor Easy to take on / remove; No hassle to replace your wristband We know you'll love our fitbit bands, that's why if you aren't 100% satisfied we will provide you with a refund or a free replacement - which ever you prefer. Buy more for your friends and family