Funnels are the most common type of apparatus found in laboratories. It is the most widely used funnels amongst the other types. For its utility, it is very useful in kitchens also. Plastic funnel is an apparatus with a narrow pipe pointing downwards and a wide crater like opening on the top. It is normally used to pour down liquid or other fine-grained material into a container. Accomplishing such tasks with a funnel avoids spillage of the liquid or chemicals. Funnels are usually made of stainless steel, aluminum, glass, or plastic. From a technical perspective, the material used in its construction should be sturdy enough to withstand the weight of the substance being transferred and it should not react with the substance.