Kashi Scientific 1.5mL centrifuge tubes with Safe-Lock flip cap - snap cap . Suitable for sample  separation, DNA & RNA extraction, sample storage, serial dilution and more applications. available for bulk purchase. 
Made of High transparency PP material, these  1.5mL micro centrifuge tubes are widely used in molecular biology, clinical chemistry and Bio-chemistry research labs.
Chemical corrosion and low temperature resistance. 
No release reagent, plasticizer and fungistat added during production, free of heavy metal. 
Stable under high centrifuge speed, up to 15000 rpm. It can guarantee staff safety and environment while testing toxic samples. 
Adapted to wide range of temperature from -80 °C to 121 °C, no distortion
Clear graduation on the wall of centrifuge tube for easier volume visibility
Frosted area on the cap and tube for conveniant mark and identification.