Xtreme Monkey Medicine Ball Rebounder ADD TO YOUR WORKOUT - The Rebounder enables a user to vary med ball workouts to make it fun and intense. THE IDEAL FITNESS PARTNER - Add to circuit, functional, athletic training or personal use at home BUILT TO LAST - The angle of the rebounder can be altered to suit any workout. Ideal for home or commercial use ADJUSTABLE - Adjust the angles of the rebounder from 30 to 45 degrees to vary workouts PREVENT SLIDING - Add Plates to the weight peg on bottom (See Pictures) to prevent sliding.