Joint clips are a type of laboratory accessory used to secure glassware components, such as flasks, tubes, and condensers, in place during experiments. They consist of two metal or plastic pieces that clip onto the joint of two pieces of glassware, holding them together in a fixed position.

Joint clips are commonly used in chemical experiments, especially in the areas of distillation and reflux, where it is important to keep the glassware components securely in place. By using joint clips, the risk of breakage or accidental disconnection of the glassware components is minimized, ensuring the safety and reliability of the experiment.