Bi-color Soft Silicone Watch Band for Fitbit Charge 4/4 SE/3/3 SE - Black / Grey Sport style watch strap, modern and fashion Two-tone design, adds a distinctive look Made of selected high quality silicone, breathable, flexible and durable Easy to install and remove A perfect choice for you to find an alternative strap for your watch Specification: Material: silicone Length size: 14.5 9.3cm Suitable for wrist size: 5.5-8.7 inches Compatible with: Fitbit Charge 4/4 SE/3/3 SE Package included: 1 x Bi-color Soft Silicone Watch Band Accessory only, device not included Size: 105-200mm (Without watch)