Fitbit Alta Accessories Coper&trade; Small Size Replacement Wristband Band Strap + Buckle For Fitbit Alta Wristband Bracelet Material:Silicone,Softness is moderate, wear very comfortable Compression molding, sturdy and durable Small Size----Strap length:160-190mm Color:Army Green,Black,Dark Blue ,HOT Pink ,Mint Green,orange,Pink ,Purple,Red ,sky blue,White The size can be adjusted according to the circumstance of individual wrist Compatible For Fitbit Alta Wristband