Centrifuge Tube, 10mL, with Natural Screw Cap, PP, Printed Graduations, 500/bag, 2 Bags/Case Globe's innovative 10mL centrifuge tubes have leak-resistant screw caps and are available in sterile and non-sterile versions. The tubes can be used on the bioMerieux? PREVI? Isola automated plate streaker system and also in centrifuge rotors that accommodate 15mL centrifuge tubes. The tubes have white printed graduation marks and a large white writing area.