CENTRIFUGE TUBE, PP MATERIAL, CONICAL BOTTOM, VOL.15ML/17X120MM, BLUE PRINTED GRADUATION FROM 2ML TO 14.5ML/GRADUATION INTERVAL 0.5ML. SCREW CAP LEAKAGE-PROOF, GREY COLOR. DNASE-FREE, RNASE-FREE, NON-PYROGEN, ASSEMBLED, NON-STERILE, 50PCS/RACK.