Nylon Elastic Smart Watch Band Adjustable Replacement Wrist Strap for Fitbit Charge 3/Charge 4/Charge 3 SE - Purple / Blue Made of high quality nylon, soft and elastic, breathable and comfortable to wear Designed with delicate braided pattern, simple and stylish With an adjustment buckle, the size can be adjusted according to the the wrist circumference An ideal replacement strap for your old, broken one Easy to install and remove Specification: Size: 5.3"-8.3" Material: Nylon Compatible with: Fitbit Charge 3/Charge 4/Charge 3 SE Package included: 1 x Watch Band Watch Not Included