Udderly EZ Colostrum Collector is a hand-held trigger-operated pump which safely and effectively collects colostrum. It is a great alternative hand milking. Give your hands a break!! Not as fast as a milking machine, but still a great alternative. 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 cows contains pump complete, one pint-size collection bottle with cap and O-ring, one quartz-size collection bottle, large extraction tube, small extraction tube, two sizes of inflation inserts, nipple and package of udder wipes. Boxed with instructions and instructional DVD. Wt. 1.9 lbs.