Lidoband is a product for livestock elastration that promotes animal welfare. Contains 80mg of lidocaine and a skin permeation enhancer, allowing the anesthetic to seep from the band into the tissue as fast as 2 hours and for up to 42 days. Lidoband Castration Bands can be used on calves up to 250 pounds and lambs up to 50 pounds. Castration by banding produces fewer complications and is simple, bloodless, and inexpensive. Comes in an easy-to-use blister to avoid touching the band. Wear protective gloves while handling the Lidoband.