These single metric scale graduated cylinders are calibrated "to contain." The scale and figures marked in white enamel stand out clearly against the red color-band on these LIFETIME RED cylinders. The 10-mL size has a funnel top. Bumper guards are supplied with 100-mL through 2000-mL cylinders. The 100-mL size is made in accordance with ASTM E-133 and E-1272 and is ued in ASTM tests D-86 and D-216.