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.