Quality Canvas Watch Strap Replacement for Fitbit Charge 3/4 - Black Made of nylon+canvas material Durable, moderately soft and comfortable to wear The size can be adjusted according to the size of the personal wrist An ideal watch strap replacement for your old, broken oneSpecification: Material: genuine leather Length: 130+105mm Width: 18mm Wrist circumference: 145-210mmCompatible with: Fitbit Charge 4 Fitbit Charge 3Package included: 1 x Watch Strap Other things not included