For Garmin Vivosmart HR+/Approach X10/X40 Soft Silicone Watch Strap Wristband Replacement with Installation Tools - Black Silicone material,comfortable,sturdy and durable to wear Ergonomically designed wristband,soft and comfortable to wear Zinc alloy buckle,safe and eco-friendly The size can be adjusted according to the circumstance of individual wrist Multiple holes design for easy adjustment of size Multi-color for option,meeting different style need Specification: Material: Silicone Length: 12.5cm + 9.5cm Weight: 0.018kg Compatible with: Garmin Vivosmart HR+ Garmin Approach X10 Garmin Approach X40 Package included: 1 x Soft Silicone Watch Strap 1 Pack of Installation Tools Accessories only,watch not included