The core function of a golf ball marker is to mark the ball position ‌, to distinguish the balls used by players ‌, and to keep the green flat. The material selection can be metal, which is durable and better supports and reflects personalized design.

Besides the green, the ball marker can also be used to temporarily mark the ball position on the fairway or obstacle area. Players can use the magnetic ball marker in combination with the golf divot tool and hat clip for more convenient carrying.