3 1/2" Round Flat Borosilicate Glass 1/4" thick
Borosilicate glass is a very clear glass. It does not have the green tint like soda lime glass. Borosilicate glass is heat resistant. It can be used very close to a light bulb without breaking. The heat generated by 3D Printer will not crack this glass. Laboratories can use the borosilicate glass for many different lab tests involving heat.
Seconds means that the glass may have scratches.
Seconds (2nds) cannot be returned or refunded because they are being sold at a discounted price.
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