Beaker cover for chemistry:made of high borosilicate glass for long-term use suitable for laboratories, schools, homes, etc very practical,Watch Glass Replacement
Glass:in addition to covering beakers and flasks, watch glass can also be used to place samples under low magnification microscopes,Watch Beaker Cover
Class beaker cover:suitable for laboratory use to of beaker contents in school,Laboratory Accessories
Laboratory glass cover:after careful grinding, the surface is smooth and burr-free, safe, practical and ,Beaker Cover for Class
Round beaker cover:compact round size design for , simple operation and convenient use,Glass Beaker Cover