10Pcs 60Mm Lab Watch Glass Beaker Cover Concave Dishes Laboratory Glassware Supplies Specification: Material: Glass Diameter: 60mm Shape: Round, Concave Application: Watch Cover, Beaker Cover Features: - Watch glasses are highly functional laboratory glassware that have a variety of uses in the classroom or lab. - The concave dishes are available in 60mm or 90mm diameter. This watch glass can work well as lids for flasks and beakers, or holding small samples for observation under a low-power microscope. - These watch glasses are ideal for evaporating liquids off of samples, such as growing seed crystals. They can be used for making lenses of ice or other liquids. Package Included: 10 x Lab Watch Glasses More Details: ,,,