4PCS Fitbit Flex Band,Silicone Replacement Wristband for Fitbit Flex Bracelet Sport Bands with Metal Watch Band Buckle Large/Small One size fits most wrists size length :5.5 to 8.25 inches Secure watchband-style band for fitbit flex, prevent the tracker fall off Made of top quality tpe and tpu composite materials. Comfortable, durable and waterproof Classic and fashionable watch band highlights your unique taste and fits your business outfits Replacement band fit fitbit flex Only,Package:4PCS fitbit flex replacement band.No tracker