Cobble Foam Uneven-Surface Balance TrainerPerform exercises to help rehabilitate the lower extremities following injury or surgery, and for vestibular training, sports training and more. Developed by a physical therapist, this versatile balance training system simulates walking on uneven terrain. Improve balance by performing basic to advanced movements from walking, hopping, marching, lunging and static balance exercises. CobbleFoam is ideal for individuals recovering from injury or surgery,