The 6B4016 Bulk Obstacle Course Markers is a set of 16 Obstacle Course Markers that can serve as a game corner flag for club play or it can be used in training for slalom course drills. Each 6B4016 Bulk Obstacle Course Marker stand 60” high and is 1/2″ diameter round. Each marker has a steel base with a spring, as well as a ground peg to keep it anchored in the ground.