This watch glass is mainly used in the laboratory and in homes, such for drop culture tests, beaker covers, temporary storage of liquid and solid samples, corrosive substances weighing, paint mixing, etc. SpecificationColor: TransparentMaterial: GlassDiameter: 60mm / 2.36 Inch, 80mm / 3.15 Inch, 90mm / 3.54 Inch, 100mm / 3.94 InchThickness: 2mm / 0.08 InchPackage Content: 4 x Watch GlassAdvantageThe glass is made of table glass with high chemical durability, which has corrosion resistance, which can effectively keep the material pure, increase the liquid surface area to accelerate evaporation, etc.Instruction1. Before use, the watch glass needs to be washed and dried, which can effectively avoid the influence of other substances on the experimental results.2.
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