Specifiction: Centrifuge tube size: including 0.2ml, 0.5ml, 1.5ml, 2ml, 5ml, 7ml, 10ml, 15ml and 50ml etc. Material: imported pp material, high temperature resistant, low temperature resistant, high pressure resistant, applicable for storing blood sample. Sterile or non-sterile With or without tag With grading lines which can make the measurement quite clear. ISO and CE certified Packing: packed in bags Neutral packing / OEM is available Lead time: within 3-4 weeks / depending on quantity Free samples are quite available.