Bale spear sleeve is needed to mount your bale spear to your equipment. Sleeves are made to be welded onto your equipment without the bale spear. You can choose from different diameters according to the size of your bale spear. Once welded on to your machine the simply insert your bale spear and tighten down with your bolts and nuts. This is very convenient because when you don’t need the spears you can undo the fasteners and take them out then refasten the spear when you need them.