This gift certificate is for one hour of introduction to martial arts for one to four children. The class includes friendly, confidence-building games and drills. Instructors teach basic skills as well as some life skill exercises. United Studios of Self Defense is the largest martial arts school in North America. Since 1968, its students have studied USSD’s unique system of Kempo-style martial arts from the finest instructors in the United States. For nearly 2,000 years, the martial arts have been steeped in tradition, and you'll feel that sense of rich history at a USSD studio.