Constructed of heavy wall glass for greater mechanical strength. Graduations are with durable white enamel.
The 10mL size is graduated upward from tip in 0.1mL subdivisions.
The 40mL size is graduated in 0.5mL subdivisions to 10mL, and from 10 to 40mL in 1mL subdivisions.
Tubes are fitted with a phenolic screw cap.