The Prostretch Plus is designed to prevent and relieve Plantar Fasciitis, Achilles Tendonitis and tight Calves and Hamstrings. The patent design holds your foot in the correct position to provide an accurate and efficient stretch. The adjustable heel rest allows you to adapt the stretch to your requirements. The removable toe lift delivers a maximum toe and plantar fascia stretch. Prostretch Plus is engineered to be stronger and lighter and now fits up to a size 14 shoe.