PYREX® Graduated Conical Centrifuge Tubes w/Pennyhead Stopper
These tubes have white enamel graduations. The 5 and 15mL sizes are graduated upward from the tip in 0.1mL divisions. The 50mL size is graduated upward from tip to 10mL in 0.5mL divisions and from 10 to 50 in 1mL divisions. The pennyhead stopper is solid.