A funnel is a practical laboratory and industrial tool designed for transferring liquids or fine-grained substances into containers with narrow openings. It features a wide mouth that tapers into a narrow stem, ensuring precision and reducing spillage during transfers. Commonly made from materials such as glass, plastic, or stainless steel, funnels are used across scientific, industrial, and household settings. They are available in various types, including conical, Buchner, and powder funnels, catering to specific applications such as filtration, pouring, and chemical handling with accuracy and ease.