6/PK Lab Watch Glass Set, Beaker Cover Lids Watch Glasses for Chemistry (70mm*2,100mm*2，150mm*2)

Package Includes - You will get watch glasses in diameter of 70mm, 100mm and 150mm, 2 pieces per size.
High Transparency - Made of thickened glass, with the characteristics of smooth surface, high transparency and rounded curvature for safe hold.
Wide Applications - Watch glasses can be used as a surface to evaporate a liquid and hold solids while being weighed, and also suitable for covering beakers or flasks to prevent dust or other particles from entering.
Occations - Can be used for professional laboratories, chemical experiments, science classrooms, and is also suitable for home uses and artworks.
Promise - Glassware is fragile and may break during delivery, if received demaged, please don't hesitate to contact us, we will solve it until satisfied.

Hello,