90mm/3.5 Inch Diameter Watch Glass, 6 Pcs High Transparent Smooth Edges

The watch glass is mainly used in scientific learning, chemistry experiments, professional laboratories, and homes, such as beaker covers, temporary storage of liquid and solid samples, corrosive substances weighing, paint mixing, etc. It also can be an evaporation...

90mm/3.5 Inch Diameter Watch Glass, 3 Pcs High Transparent Smooth Edges

The watch glass is mainly used in scientific learning, chemistry experiments, professional laboratories, and homes, such as beaker covers, temporary storage of liquid and solid samples, corrosive substances weighing, paint mixing, etc. It also can be an evaporation...