Bigger, stronger, better EZE bander allows for superior one-hand control and provides the most humane method of castrating. Latex bands have 170% larger opening than standard bands and are twice as strong. Flat sides prevent bands from rolling off bander. XL size for use on bulls with tennis ball size testicles (250-750 lbs); bands sold separately Tetanus Toxoid should be used unless directed otherwise by your veterinarian. Made in the USA.