Abstract: A round baler comprising a bale chamber in which crop material is formed into a bale, crop material pick-up means operable to deliver crop material to the bale chamber, apparatus for wrapping a formed bale with sheet material comprising feed rolls operable to feed the sheet material so that it can engage the formed bale and be wrapped therearound, and a knife operable to sever the sheet material when the formed bale has been wrapped with a predetermined length thereof. A further roll is disposed between the feed rolls and the formed bale for applying the sheet material in its full nominal width to the formed bale.