Capacity of Each Bottle: 1000 mL, permanent white enamel graduations from 200 mL to 800 mL, accurate scales Thick Glass: thick, tough, high quality, low coefficients of thermal expansion, resistant to thermal shock, high chemical resistance in corrosive enviroments GL45 Screw Cap: Blue GL45 screw cap, tight seal, drip-free, cap up to 140℃ Autoclavable: Bottle up to 120℃, reusable