BILLY Height extension unit, White, 80x28x35cmIt is estimated that every five seconds, one BILLY bookcase is sold somewhere in the world. Pretty impressive considering IKEA launched BILLY in 1979. Its the booklovers choice that never goes out of style. With a shelf height extension unit, you can make the most of the wall area, while freeing up space on the floor. Assembled size Width: 80 cm Depth: 28 cm Height: 35 cm Care Instructions Safety bracket for fixing to wall included. To be combined