1qt/15", 7qt/17", 1qt/17"wide screen, 4qt/18.5"ws, 2qt/19", 2qt/19"ws, 1qt/19.5"ws, 6qt/20"ws. ACER, AOC, DELL, Gateway, HP, Hyundai, Insignia, Samsung, ViewSonic. 5qt of the wide screen have no base. All are in very good working order and clean. If interested, I can send you a data sheet with more information.