There are two types of meat injectors, the meat pump and meat gun. They help you inject all your meats with your favorite marinades. Equipped with replacement needles you can also purchase them separately. Heavy duty metal injector have detachable needles with holes. They are good to pump pickling cure into meat or marinade into roasts or steaks. Excellent for curing and seasoning liquids that can be efficiently and uniformly dispersed in meats. Meat injectors lock the flavors of your marinades into beef, pork, fish and poultry.