For Fitbit Charge 2 Elastomer Bands,CreateGreat Silicone Replacement Accessory Band With Compass For Large Small Fitness Wristband Compatibility Fitbit Tracker Type Replacement Band for Fitbit Charge 2 Fitness Wristband,No Tracker Perfect Silicone Material The Fitbit chagre 2 bands are made of durable and flexible elastomer material.Comfortable to wear,eco-friendly and safe for the human skin. Adjustable Size This CreateGreat Fitbit Charge 2 Band is a standard size for most wrists(5.5"-8.1"),Fits perfectly for your charge 2. About CreateGreat: All products by CreateGreat are guaranteed 30 Days Money Back Guaranteed! Please feel free to contact us if you meet any question BEFORE you review it. We will try our best to solve your problem.