Wong To Yick WOOD LOCK Medicated Oil Balm – Best Massage Oil for pain relief – 50ml /1.7ozManufactured in Hong Kong Established Since 1968. Mr. Wong To Yick, is a well known Hong Kong researcher in the field of herbal medicine. After years of research and experience, he had perfected the Wood Lock Medicated Balm, since its establishment in 1968, Wood Lock oil has been widely used for its effective aid in relieving muscular pains and sprains. Description: Shipped in WONG TO YICK WOOD LOCK Medicated Balm original box / packaging 1.7 fl. oz. (50ml) WOOD LOCK Medicated Oil Balm Medicated Oil Balm wrapped in Wong To Yick packaging to prevent exposure (to air Only found on authentic Wong To Yick products) Instructions for use in English and the Chinese language Certificate of authenticity Printed on packaging (Only found on authentic Wong To Yick products):