Udderly EZ Colostrum Collector is a hand-held trigger-operated pump which safely and effectively collects colostrum. The collector is easy to use with one hand and is gentle on udders. A few pulls on the trigger creates vacuum in the bottle and a few more pulls completes the collecting. The pump snaps onto a flanged plastic extraction cylinder. Complete Kit for sheep and similar size animals includes two sizes of extraction cylinders along with two sizes of silicone inflation inserts, one bottle nipple, two 8 oz. collection bottles with caps and a package of udder wipes. Boxed with complete instructions.