Abstract: A wrapping machine having feed rollers for introducing a web of wrapping material into a wrapping mechanism and including a reel changing device comprising a support mounted on the machine frame, mountings on the support for two reels of wrapping material, guiding means on the support for guiding the webs from the two reels to respective separate draw-off points, the support being movable with respect to the machine frame between alternative positions, in one of which the draw-off point of one web is close to the feed rollers and in the other of which the draw-off point of the other web is close to the feed rollers, and means for locking the support to the machine frame in each of its two alternative positions, the mountings for the reels and the guiding means for the reels being so disposed that, when one reel is feeding wrapping material, a replacement reel placed on the other mounting is accessible to enable the web thereon to be fed through its guiding means to its draw-off point.