Product: watch glass set (concave circular disks) for laboratory sample handling, observation, and use as lids for beakers or evaporating dishes
Material & Construction: borosilicate glass, 2 mm uniform thickness, smooth transparent surface with laboratory-grade finish; chemically compatible with common lab reagents
Dimensions & Pack: set of 10 pieces; available diameters: 70 mm / 100 mm / 150 mm
Experimental Use: for solvent evaporation, crystallization, small-sample containment, weighing/transfers, and as a cover for beakers/evaporating dishes; suitable for indirect or controlled heating methods
Safety & Warranty: not for direct flame or open-burner heating; inspect for chips/cracks before use; backed by a 1-year limited manufacturer warranty
