Four adjustment height settings at 12", 16", 20", and 24" - Progressively increase the intensity of your training - Perfect for box jumps, push-ups, dips, step-ups, and other plyometric exercises - Designed to help you build speed, power, agility and endurance - Pro-duty steel construction with a non-slip rubber grip platform - Includes rubber feet for secure contact Please refer to photo for more details as they are the best part of the description.