These coffee mugs, like our standard beaker coffee mugs, are made from borosilicate glass beakers with handles, and have milliliter graduations and a marking spot printed in white. Instead of a standard rim, however, these come with pour spouts opposite of their handles.
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.