Ring clamps are laboratory tools used to hold and support equipment, especially glassware like flasks or funnels, during experiments. They are a staple in chemistry and biology labs and are usually used with retort stands (also called ring stands).
Holding glassware (e.g., flasks, funnels) during filtration or heating
Supporting funnels during gravity filtration
Securing apparatus above a Bunsen burner
Stabilizing setups in titrations or distillations