12PK Watch Glasses, 3″ (7.5cm) – Cover Lids for Beakers & Flasks – Evaporation Dish – Polished with Ground Edges – Eisco Labs

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 12 PACK || Set includes twelve covers, each measuring 3" (7.5cm) in diameter 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 MANUFACTURED BY EISCO LABS || Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind