The lab grade cork stopper set includes 68 stoppers. Four of sizes, 0-13 and size of sizes 14 and 16. The corks are made from natural materials and are food safe.

GSC International ASSORTED-CORK Assorted Corks size 0-16. Pack contains 68 pieces total.

Lab-grade cork stoppers are essential for sealing flasks, test tubes, and other laboratory glassware. Made from high-quality natural cork, these stoppers provide a secure yet breathable seal, making them ideal for a variety of scientific applications. Lightweight & Compressible – Ensures a snug fit without damaging glassware. The natural cork has imperfections including holes. Versatile Use – Perfect for chemistry, biology, and general lab applications. These stoppers come in various sizes to fit different lab containers, ensuring a reliable and reusable sealing solution for educational and professional laboratory settings.

PRODUCT WARNINGS

WARNING: This product can expose you to chemicals including styrene and lead, which are known to

the State of California to cause cancer, birth defects, or other reproductive harm. For more information go

to www.P65Warnings.ca.gov.

Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.

This product consists of small items, making it a choking hazard. Only use with adult supervision.