These PYREX® VISTA™ cylinders are calibrated “to contain” (TC). Supplied in two parts, with a strong, accurate glass graduate and a detachable, sturdy plastic base to absorb impacts and reduce breakage. Tolerances are ±5% of total at any point. By removing the base, the graduate can be conveniently stacked. Bumper guards are supplied, with 25–100mL inclusive. The 10mL has a funnel top for careful pouring.