Bi-color Soft Silicone Watch Band Breathable Replacement Strap for Fitbit Charge 5 - Black / Grey Made of high-quality silicone material, soft, lightweight, waterproof, and prevent skin irritation Bi-color design, adds some stylish elements to your watch The size can be adjusted according to your wrist Multi-color for option, meeting different style need Specification: Material: silicone Suitable wrist size: 5.5" - 8.1" Compatible with: Fitbit Charge 5 Package included: 1 x Watch Strap Watch not included Size: 130-190mm (Without watch)