CENTRIFUGE TUBE, PP MATERIAL, CONICAL BOTTOM, VOL.50ML/30X115MM, BLUE PRINTED GRADUATION FROM 5ML TO 50ML/GRADUATION INTERVAL 2.5ML. SCREW CAP LEAKAGE-PROOF, GREY COLOR. DNASE-FREE, RNASE-FREE, NON-PYROGEN, ASSEMBLED, GAMMA STERILE, 25PCS/RACK