This easy to use XL bander is designed for bulls from 250 to 650 lbs and works just like the plier type banders. Simply open the band, put into place and release the handle of the applicator. It can also be used for removing horns and docking tails. Once the band is in place, the scrotum should fall off in twenty to forty days. | S&J Tools XL Castrating Cattle Bander in Grey