1.5ml Micro Centrifuge Tube 1.Autoclavable to 122C and freezable to -90C 2.Unique designed caps ensure the secure seal 1.5ml Micro Centrifuge Tube, Autoclavable High clarity polypropylene ensure a clear view of the contentEasy close/open snap-caps eliminate the risk of snagging glovesUnique designed caps ensure the secure sealLarge external graduationFlat, frosted cap and side labeling area ...