This cover includes 4 pieces: 1 lid cover, 1 base cover which attaches with velcro and measures 80x80cm (31 ½ - 31 ½ inches) and 2 low backrest covers measuring 80x80cm (31 ½ - 31 ½ inches). This cover is for the IKEA Vallentuna corner seat module / section with storage only and does not fit the bed section. Back rests sold separately at IKEA.