WEAR YOUR FITBIT IN STYLE Â¨C 1pcs Replacement Band and metal clasp from Niutop for your Fitbit Flex Wireless Band(not original, made by third party). THE ONLY REPLACEMENT BANDS YOU WILL EVER NEED- Made from durable and waterproof materials that are even better constructed than the original. REASONABLE ADJUSTMENT BAND - you can use the metal clasp to adjust to a ideal size,which makes you have a good mood. SIZE CHART- Large Size:6.3-8.3 Inches / 161-210 mm. Small Size:5.5-6.9 Inches / 140-176 mm(the real size is a little smaller than the original one). Band Width:0.6 Inches / 13.9 mm. BUY WITH CONFIDENCE - You are covered by Niutop's Industry Leading 100% Satisfaction Guarantee. Don't like the product? Just contact us for a full refund or replacement!