Our weighing bottles are made from borosilicate glass, have a flat bottom, and come with a ground glass penny-head stopper.
WARNING: This product can expose you to chemicals including arsenic 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.