For persons 5' 2 to 5'6 * Length 9 (22 cm) * Fits right or left foot * The Aircast AirHeel/DNS Care Kit gives you round-the-clock relief for Plantar Fasciitis * For daytime the unique Aircast AirHeel provides clinically-proven comfort and massaging relief for Plantar Fasciitis * Two interconnected aircells located under the foot arch and at the back of the heel apply pulsating compression with every step help reduce swelling and discomfort and enhance circulation * The AirHeel is made of lightweight breathable fabric and is simple to apply and to adjust with one strap * For nighttime the Aircast Dorsal Night Splint delivers optimal comfort for pain relief for Plantar Fasciitis * The front-of-leg hard shell has a flexible hinge and is paired with a soft adjustable wrap-around brace making it easy to put on and remove * Foot angle is easy to adjust using the front strap * Fits right or left foot.