Diamond Grain Silicone Smart Watch Band Replacement [Small Size] for Fitbit Charge3/Charge4 - Black Eco-friendly silicone material, resistant to wear and tear Ergonomically designed wristband, soft and comfortable to wear Multi-color for option, meeting different style need Classic metal buckle, no slipping-off problem Multiple holes design for easy adjustment of size An ideal strap replacement for your old, broken oneSpecification: Material: Silicone Length: 110mm+92mm Width: 20mm Product weight: 14.3g Wrist circumference: 130-195mmCompatible with: Fitbit Charge3/Fitbit Charge4Package included: 1 x Watch Band Other items not included