Replacement bands compatible with Fitbit Inspire / Inspire HR / Ace 2 Fitness Tracker. Fits as good as the original band. Simple to install and remove, NO tools required! The end of the band has a lug, which fits your Inspire smart watch in place and locked precisely & securely. Made from flexible high-quality elastomer, sweatproof & waterproof. Prevents skin from irritation, soft, lightweight and durable, very comfortable to wear. Size: 7.17 x 3.15 x 0.55 inches.