Our Griffin Beakers are made from quality, heat-resistant borosilicate glass, and have a reinforced rolled rim and even wall thickness. They are made so that the smaller sizes will nest inside the large sizes. PRODUCT WARNINGS WARNING: This product can expose you to chemicals…

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. PRODUCT WARNINGS …