Moonetto 500mL Pyrex Graduated Round Media/Storage Glass Bottle With GL45 Blue Polypropylene Screw Cap 8 Pack; permanent white enamel graduations from 100 mL to 400 mL. transparent, easy labeling, chemistry, tough, tight seal, chemistry, biologicals and other liquid solutions for lab, · Glass bottles fit for storage of media, transparent, · Capacity of Each Bottle: 500 mL, low coefficients