Smarfan Silicon Wristband for Fitbit One/Bracelet Band for Fitbit One Wirelss Activity Plus Sleep/Replacement Band for Fitbit One Wristband Free Size: Adjustable from 195mm/7.68inches to 248mm/9.76inches. Soft Silicon Band for Fitbit One 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. NOTE:No Tracker or other parts! For Fitbit One Band only! Not for other Models