Globe Glass media bottles are designed with a wide mouth for ease of filling, dispensing and pipetting. A drip free pour ring and autoclavable polyethylene (PE) screw cap enable sterilizations of media and reagents. Globe Glass media bottles are available in sizes 50mL to 10000mL. ASTM E438, Type I, Class A, Borosilicate 3.3 Glass GL32 polyethylene (PE) screw cap on size 50mL GL45 polyethylene (PE) screw caps on sizes 100mL to 10,000mL Pouring ring for drip free liquid transfer High resistance to chemicals Dual scale metric graduations Durable white enamel printing Large white marking area