The Vinton Senior Center is offering free Tai Chi for Arthritis classes twice a week. The beginner class takes place each Tuesday from 10:30-11:30 a.m. The intermediate class takes place each Thursday from 4-5 p.m. Certified instructors teaching the various classes include Steve Garay, Chris Saeyer, and Judy Gruber. The Charles R. Hill Senior Center is located at 820 Washington Avenue. For more information, call Penny Beyer at 983-0643.