Fitbit Alta/ Alta HR Bands,Colorful Design with Adjustable Metal Clasp Replacement Bandby ULT-unite. Personalized Your Fitbit Alta/ Alta HR tracker, Tracker NOT included!!! Made of high quality TPE + TPU Rubber. Comfortable, durable and waterproof. An innovative pin-and-tuck closure ensures a clean fit. Metal parts made with hypoallergenic nickel free stainless steel. The Fitbit accessory is a one size fits most wrists, Designed to fit most wrists (size: 5.5 inch - 8.9 inch). Delighted varied color fits your mood and outfits in daily life. Not only sporty but also fashionable accessories,Creates a strong statement for yourself