Premium Hand Crafted Beaker Mugs, Laboratory Quality Borosilicate Glass, Kitchen Set, (2) 16.9oz (500mL) Capacity and (2) 8.4oz (250mL) Capacity

Hand crafted thick, lab quality borosilicate 3.3 glassware. Note: Lab borosilicate glass is typically lightweight and thin, so it feels different than standard household glassware. Graduations measure up to 400mL, total volume of mug is 500mL (graduations and capacity are both approximate) Great gift for scientists and geeks Best version on the market Set of 4 mugs: (2) 500mL and (2) 250mL