These double-scale cylinders are made from quality borosilicate glass and have a round base, permanent graduations, and a reinforced rolled rim. Graduations are in ascending order on one side and descending order on the other.
WARNING: This product can expose you to chemicals including 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.