Product Features:

• Compatible Models:  Fitbit Charge 3/ 3 Special Edition / Fitbit Charge 4. 
• Size: Small is for 5.5" – 7.1" wrist, large is for 7.1" -8.7" wrist.
• Premium Waterproof Material:  made from flexible elastomer, sweatproof & waterproof, comfortable to wear.
• Easy to Install & Take off : Easy to replace. 
• Various Colors: Multiple colors available. 

Package Content:

•  1x Fitbit Charge 3 Replacement Classic Strap (Tracker is not included)