Pipettes, graduated, glass, A-grade 1ml. Graduated pipette made of high quality, heavy duty Borosilicate 3.3 glass. 1.0ml capacity, 0.01ml blue graduation lines, marked every 0.1ml. Class A, tolerance, ±0.007ml. Pipette measures 14.25" in length, and has a body diameter of 0.25". Top has an inner diameter of 2.5mm and an outer diameter of 7mm. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks.