A syringe is a medical instrument used to inject or draw off liquid. It consists of a hollow cylinder with a plunger inside and a thin hollow needle attached or a similar apparatus without a needle. The plunger can be pulled back to suction material or pushed out to apply medicine or liquid to an area. Syringes are frequently used in clinical medicine to administer injections, infuse intravenous therapy into the bloodstream, apply compounds such as glue or lubricant, and draw/measure liquids. There are also prefilled syringes (disposable syringes marketed with liquid inside) that can provide greater patient safety by reducing the potential for inadvertent needlesticks and exposure to toxic products that can occur while withdrawing medication from vials. Syringes come in various sizes ranging from 0.5 mL to 60 mL. They are made of different types of material, including metal, glass, and plastic. Historically, syringes were made of metal and glass, which allowed them to be used, cleaned, and reused. However, most syringes used in medicine today are plastic and disposable. Syringes are also used in culinary applications, such as injecting liquids (such as gravy) into other foods, or for the manufacture of some candies.