These versatile Speed Rings are available individually in the 20", 24" and 27" diameters. A rainbow coloured prepack of 6 x Speed Rings (20") is also available and is a perfect product for personal training, boot camps and sports conditioning clinics. These Speed Rings are extremely durable and virtually unbreakable under normal use! The unique design features a reinforced edge for ultimate toughness even under the most intense personal training and sports conditioning drills! Great for overall cardio conditioning, speed training, agility training and fast-feet drills.