ITEM NAME:20ml Beaker Borosilicate Glass Low Form Graduated Chemistry Lab Test Description: - Material: Borosilicate 3.3 glass - Strain Temperature of 520 C,Can be Direct heated - Marking Spot for Easy Sample Identification - Water, acid and alkali resistant - Lip and pouring spout. Package Included: 1x Glass Graduated Beaker.1x Glass Graduated Beaker. - Water, acid and alkali resistant. - Strain Temperature of 520 C,Can be Direct heated. - Marking Spot for Easy Sample Identification.