These quality 50ml Flat Bottom Boiling Flasks are made from borosilicate glass, and are heat resistant. The flasks have a narrow mouth, a tooled top finish, and thick walls. These flasks come as a pair of 12.

• Made from quality borosilicate glass
• Heat resistant
• Narrow mouth
• Tooled Top Finish

Made from quality borosilicate glassGSC International Inc.