12PK Watch Glasses, Cover Lids for Beakers & Flasks – Evaporation Dish – Polished with Ground Edges

Description STURDY GLASS:  Concave beaker covers (also known as watch glasses) made with quality glass. Each cover features ground edges & polished surfaces for safe handling. The 2.0mm glass thick construction resists shattering VARIETY OF USES:   Can be used for a variety of laboratory functions – ideal for covering beakers and flasks, but can also be used to hold small samples for observation under a low powered microscope, or evaporating liquids off of samples (i.e. growing seed crystals) GREAT FOR SCIENCE CLASSROOMS:  The sturdy construction and makes these covers an excellent choice for science classrooms     Watch glasses are highly functional laboratory glassware that have a variety of uses in the classroom or lab. The concave dishes work well as lids for flasks and beakers, or for holding small samples for observation under a low-power microscope. Also useful for evaporating liquids off of samples (i.e. growing seed crystals). They can be used for making lenses of ice or other liquids. Eisco watch glasses are manufactured with sturdiness in mind. Their 2.0 mm thick construction resists shattering. And as they have ground edges, as well as a polished surface, you can be sure that they are a safe product to handle in the classroom or the lab.