Accurate graduation marks: 0.5ml, 1.0ml, 1.5ml and 2ml.
Flat tops and writing area on the side of the tubes for labeling.
Ultra tolerance for centrifugal forces of up to 20,000 RCF.
All tubes offered with special low friction surface.
Made in various standard colors.
DNase / RNase free.
Autoclavable.
Color assorted for blue / green / red / violet / yellow / amber /clear in box