Watch Glass 90mm Diameter with Fire Polished Edges

Watch glass has multiple uses in a laboratory.  It may be applied as a jar cover in condensation experiments, a protective lid to prevent contamination by dust particles stored in a container, and as an evaporative surface when crystallization or precipitation or being observed. Highly recommended for use in science fair projects and classroom experiments!

Features:

• Watch glass measuring 90mm in diameter
• Safe to touch fire-polished edges
• Can be used for a variety of laboratory applications
• Great for science fair projects and classroom experiments