Anpro 4 Pairs Replacement Bands with Metal Clasps for Fitbit Flex, with 2 Piece Silicon Fasten Ring and 1 Fitbit Flex Charge Cable 4 Pairs replacement bands and metal clasps, 2 pcs silicon fasterner ring, 1 pcs charge cable for fitbit flex. Free size fit your wrist depend on button site you place. Comfortable for sporting time, Look good no matter what you are wearing Silicon Fastener Ring For Free - designed specially for fitbit flex to protect the clasp loose and band fall off Personalize your wristband to match your daily style with this brand new color choices Free size wristband accessory ,High quality and Replacement for lost or damaged Bands