A Pinch Clip with Screw is a durable laboratory accessory used to control or completely stop the flow of liquids or gases through rubber or plastic tubing. It is made of high-quality metal or plastic and features an adjustable screw mechanism that allows precise tightening and release. This ensures accurate flow regulation during experiments. The clip is easy to use—simply place it over the tube and adjust the screw to achieve the desired pressure. It provides a firm grip without damaging the tubing, making it ideal for repeated use in laboratories, schools, and industrial setups. Commonly used in chemistry and biology labs, this clip is essential for experiments requiring controlled flow, offering reliability, precision, and long-lasting performance.