BBK Large/Small Replacement Bands with Clasps for Fitbit Flex Only/No Tracker/Wireless Activity Bracelet Sport Wristband Fit Bit Flex Bracelet Sport Arm Band Armband Durable, Waterproof Materials, Manufactured by BBK ,not by Fitbit Easy-to-wear, slim, comfortable wristband match your daily style, perfect fit for your Fitbit Flex activity tracker and comfortable wearing experience Wristband Small Size: 5.5~6.9 inches, 140mm~176mm/ Large Size: 6.3~8.2 inches,161mm~209mm Stylish wristband to match your daily style with this brand new color choices For Fitbit Flex Wristband replacement Only! Not for Fitbit One or Force or other models