Features: 100% Fashion Style Diamond Silicone Band for Fitbit Charger2 Specially designed connector, easy to install and remove, no tools needed Stainless steel Buckle Compatible for Fitbit charger2 Tracker Size: Small:Fits wrists 5.5"" - 6.7"" in circumference Large:Fits wrists 6.7"" - 8.1"" in circumference. NOTE:Not include the smart watch,only the strap band. Package includes: 1* Silicone strap Band ( tracker not included)