These unique pads are designed to prevent falls and improve balance by producing site-specific stimulation of cutaneous receptors located along the outer sides of your feet. Recent research shows that this precise location is loaded with different types of cutaneous receptors, all of which play a key role in maintaining balance. The outer placement also makes them important in preventing lateral falls, which are far and away the most likely to result in injury. The Clinician Package include a free 256cps Tuning fork. They are sold in 6 packs.