These rods are made from flint glass, have a 5mm diameter, and are 24 inches long. Approximately 15 pieces per one pound pack.
WARNING: This product can expose you to chemicals 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.