What is Stopper (plug)?
[[Image:Jug with cork stopper.jpg|thumb|A jug with a cork stopper]] A '''stopper''' is a small object used to seal a container. They are generally used for bottles or [[test tube]]s. They are usually made of plastic, rubber, glass or [[Cork (material)|cork]]. They are also known as bung, a plug or if made of cork, as a cork. {{stub}} [[Category:Laboratory equipment]] [[Category:Hardware (mechanical)]] [[Category:Wine]] [[Category:Containers]]