This 6.5" triangle cone is great for speed training and agility training drills with athletes performing high-intensity workouts. If the cone is knocked over during the course of the training session, it won't impede performance and will still clearly indicate the outline of your marked obstacle course. And best of all, when you knock this cone over, it still remains a triangle cone that doesn't have to be constantly set upright. This is a timesaver for boot camps, personal training sessions and sports conditioning clinics