GinCoband 12PCS Fitbit Flex Wristband Replacement Accessory with Clasp for Fitbit Flex Bracelet Sport Arm Band No Tracker FREE SIZE Adjust by the button Comfortable for sporting time 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. Personalize your wristband to match your daily style with this brand new color choices. Comfortable and Fasion Made from durable and waterproof materials that are even better constructed than the original. NOTE:No Tracker or other parts! For Fitbit Flex Band only! Not for Fitbit one or other Models! Replacement Rubber Bands with Clasps Only