Oak Ridge Centrifuge Tubes made of polypropylene, have excellent contact clarity and can be used up to 50,000xG.The screw cap is fitted with silicon O-ring making it totally leak proof. These Oak Ridge Centrifuge Tubes should not be used below 4C. Based on that, we have earned so much popularity between the existing manufacturer and exporter of Oak Ridge Centrifuge Tubes. Famous for :- Made of polypropyleneHave excellent contact clarityCan be used up to 50,000xgScrew cap is fitted with silicon O-ringTotally leak proofShould not be used below 4C Particulars