Glass cover plates are often used to cover flasks and protect their contents from contamination, though their uses vary per user. All sizes are approximately 2.5mm thick.
WARNING: This product can expose you to chemicals including arsenic, 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.