Description Feature:4 Different SizesIt offers 18mm, 20mm, 22mm and 26mm. Please confirm the width of watch strap first to choose the appropriate size.Anti-slip DesignIt is design with anti-slip bar to well inserted into holes of the strap, not easy to fall off.Skin-friendly MaterialMade of high-quality silicone, it is soft and durable, offering comfortable wearing experience.Classic Black WhiteIt comes in 10pcs black or white strap fasteners. One loop can already secure your watch strap.WaterproofIt is water and sweat resistant.Compatibility18mm strap fastener: compatible with GARMIN Venu 2S, vivomove 3s, Garminmove3S, vivoactive 4s, GarminActive S;20mm strap fastener: compatible with GARMIN Venu Sq, venu, vivomove3, Garminmove3, vivoMove Luxe, GarminmoveLuxe, vivoMove style, Garminmove style, vivomove (HR sport version), vivoactive3 (music), Forerunner 245 (music), Forerunner645 (music);22mm strap fastener: compatible with GARMIN Venu 2, vivoactive4, GarminActive;26mm strap fastener: compatible with GARMIN Fenix 5X/5X Plus/3/3HR.Specification:Material: SiliconeSize: 18mm, 20mm, 22mm, 26mm (Optional)Color: Black, White (Optional)Packing list:10 * Watch Strap Fasteners