Blood Collection Tube material: PET or GLASS size: 13*75, 13*100, 16*100 volume available: tube without separate gel 13*75: 1ml, 2ml, 3ml, 4ml, 5ml 13*100: 6ml, 7ml 16*100: 8ml, 9ml, 10ml tube with separate gel(yellow cap) 13*75: 1ml, 2ml, 3ml, 4ml 13*100: 5ml, 6ml 16*100: 7ml, 8ml, 9ml