The Wheelchair Training Stools, model 710, are transfer training devices designed for teaching patients to get in and out of wheelchairs without assistance. As the patient becomes more skilled, the steps may gradually be removed. The steps can be hooked together securely in any sequence. DIMENSIONS: Top size is 20 x 10.75 inches, height of stools are 20, 16, 12, 8 and 4 inches. CAPACITY: 250 pounds.