SCMST012 12ML culture tube 50 pcs/bag, 10 bags/carton 49 X 28.5 X 40 Product capacity: 12ML Product specifications: length 9.4CM * external diameter 1.8CM * internal diameter 1.6CM Commodity packaging: 100 pcs / pack Product material: PP (new material) Commodity use: Dedicated to shake bacteria operation, it can perform ventilation and airtight operation. It is a 15ml tube, it marked 12ml on the tube.