Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Size: Large Men 10-13 Women 11-15 * Size: Medium Men 7-10 Women 8-11 * Size: Large Men 10-12 Women 11-15 * Size: X-Large Men 13+ Women 15+ * The Pneumatic WalkerTM offers enhanced stability, mobility and edema control * Air bladder inside * Anatomically designed in three sizes *