The Bert L. and Iris S. Wolstein Center, often called "The Convo", is an indoor arena located in downtown Cleveland, Ohio, United States, on the campus of Cleveland State University. It is home to the Cleveland State Vikings men's and women's basketball teams and the former home of the Cleveland Crunch and Cleveland Force of the NPSL and MISL. The building opened in 1991 as a replacement for Woodling Gym and was known until 2005 as the CSU Convocation Center. It is named for Bert L. Wolstein, a Cleveland State alumnus.