The injector is made from PP and Stainless steel material,ergonomically designed for one-hand operation, using a 3 inch needles with double-hole design in needle resists clogging, distributes marinade in two directions, easily penetrates deep to deliver optimum flavor infusion throughout, marinates foods quickly and cleanly. It is best for include large cuts of meat, like whole hogs, hams, and pork shoulders, whole turkeys and chickens, briskets, etc., plus intrinsically dry meats like pork loin, lamb leg, beef round roast, and double thick pork chops.