The dog cavaletti is an incredible canine conditioning tool. These are great for rehab from injuries or surgeries and also for dogs with neurologic and orthopedic conditions. Also great for keeping the body in functional condition for athletes and working dogs. Heights are easily adjusted by just turning the bar which will raise or lower the cavaletti. Heights are 2.5”, 3”, 3.5” and 3.75”. Each cavaletti comes with a 36” x 3/4” furniture grade PVC cross bar. List price is for a set of 4 complete units. A complete unit is defined as 1 bar and a left/right end adjuster.