Weinisite Metal Watch Buckle Design Replacement Adjustable Band Cover for Fitbit Alta Replacement Adjustable Band Strap For Fitbit Alta Made of high quality TPE + TPU Rubber. Comfortable, durable and waterproof This single size band will fit wrists sizes 5.5" (small) - 8.1'' (large) Choose your favorite color, Make your fitbit unique,More occasions,more dress,More choice Metal Watch Buckle Designer Replacement Adjustable Band for Fitbit Alta Prevent the Tracke Fall Off Wristband Strap