Feature: 4 Different Sizes Available in 18mm, 20mm, 22mm, and 26mm. Please measure your watch strap width to select the correct size. Anti-slip Design Designed with an anti-slip bar for secure insertion into the strap holes, helping prevent accidental detachment. Skin-friendly Material Made from high-quality silicone, soft and durable for a comfortable wearing experience. Classic Black & White Includes 10 black or 10 white strap fasteners. Each fastener securely holds the watch strap in place. Waterproof Resistant to water and sweat. Compatibility 18mm: Compatible with GARMIN Venu 2S, vivomove 3S, Garminmove 3S, vivoactive 4S, GarminActive S 20mm: Compatible with GARMIN Venu Sq, Venu, vivomove 3, Garminmove 3, vivoMove Luxe, Garminmove Luxe, vivoMove Style, Garminmove Style, vivomove (HR sport version), vivoactive 3 (music), Forerunner 245 (music), Forerunner 645 (music) 22mm: Compatible with GARMIN Venu 2, vivoactive 4, GarminActive 26mm: Compatible with GARMIN Fenix 5X, 5X Plus, 3, 3HR Specification: Material: Silicone Size: 18mm, 20mm, 22mm, 26mm (selectable) Color: Black, White (selectable) Packing List: 10 x Watch Strap Fasteners