Beakers - SIMAX - 5000ml. High quality borosilicate glass beakers, with graduations and spout. Manufactured in the Czech Republic, these beakers have uniform wall and base thickness, due to being manufactured using rotary glass blowers which blow molten glass into moulds to form the beakers. The even wall thickness provides a more thermally and mechanically stable beaker, which is less likely to damage during heating or rough handling.