Your ball marker, now always within reachSlides onto your Apple Watch, Garmin, Whoop, or any standard strap so it's on your wrist when it's your turn to putt. The Seeker Ball Marker has a universal fit to all watch straps around .05-1.5 inches. You can also wear it on your hat or shoelace It can also slide onto the back of your snap back hat, shoelaces, or you can purchase a Seeker Strap to keep it on your wrist. Everything you need, right out of the boxComes with a premium silicone marker holder and a birdie ball marker or a custom ball marker. Everything you need, right out of the boxComes with a premium silicone marker holder and a birdie ball marker or a custom ball marker. Fits your watch, your wayThe Seeker Ball Marker is designed to slide smoothly onto any standard 1" strap. Comfortable, secure, and low-profile enough that you'll forget it's there. Holds through every swing, guaranteedOur neodymium magnet has been tested through years of real rounds. It won't let you down in rain, heat, or a pressure putt.