The new XL Bander is ideal for Bulls from 250 to 750 lbs. It requires no tightening of any kind. Simply spread the band open with the easy to use applicator, slip the band into place, and release it. The XL can also be used on horns and tails. Works on cattle, large sheep and goats! XL Bander for band Castration of Livestock. The XL Castrator MUST be used only with the Latex Bands/Rings designed for this Castrator. These Bands are Black in color and not to be confused with the Tan Bands for the Smaller Tri-Bander.