This cover includes 5 pieces: 1 frame cover (includes armrests), 2 seat cushion covers and 2 backrest covers. After removing the original IKEA cover (assembly required), the Bemz cover with a long skirt slips easily on and off the Karlstad sofa without removing the armrest. It can only be used on the IKEA Karlstad 2 seater sofa (165 cm wide). If your sofa is bigger, see the IKEA Karlstad 3 seater sofa. If you can pull a bed out of your sofa, see the Karlstad sofa bed. This cover cannot be used on leather sofas. The cushion covers are reversible and secured with zippers.