Compatible with Fitbit Versa 3 and Fitbit Sense Only. (The Fitbit device is not included.) Premium nylon material with moderate softness and fine craftwork make it comfortable to wear and durable. Lightweight & breathable and Skin-Friendly design. Adjustable length design with 10 holes, the size of band can be freely adjusted, providing the best wearing experience. For small, medium, large wrists, fit 6.30" – 8.27" (160mm - 210mm) wrist. Come with precisely made connector which locks onto your Fitbit Versa 3 & Fitbit Sense securely & tightly, fit seamlessly into your watch interface, easy to assemble and remove, no tools needed. Stainless steel buckle clasp with premium soft Woven Nylon combined to form a unique style. Suitable for any occasions. Package includes: 1 x Fitbit Versa 3 & Fitb.