ULT-unite Fitbit Alta HR Bands and Fitbit Alta Bands, Newest Adjustable Replacement Bands for Fitbit Alta HR/ Fitbit Alta (with Metal Clasp,No Tracker) Personalized Your Fitbit Alta HR/ Fitbit Alta 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. Small Szie: 5.5" - 6.7" (140mm - 170mm), Large Size: 6.7" - 8.1" (170mm - 206mm). Delighted varied color fits your mood and outfits in daily life. Not only sporty but also fashionable accessories,Creates a strong statement for yourself