SnowCinda for Fitbit Flex Bands, Accessory Replacement Bands with Clasps for Fitbit Flex Small Large SnowCinda accessory bands for fitbit flex. Small size: 5.5-6.8 inches. Large size: 6.3-8.1 inches. 100% eco-friendly prime quality rubber. Soft, washable and very comfortable to wear. No harm to your health. Multi-color replacement bands highlight your unique taste and fit your mood in daily life. You don't need to own a Fitbit Flex. Just wear it as a fashionbal bracelet and you will love it! 1 year warranty. Free replacement or a full refund during the warranty. Easy-to-reach customer service.