Specification: 12/13 X 75mm, 12/13 X 100mm Additive: K2EDTA or K3EDTA Blood Volume (ml): 2, 3, 4, 5. 6, 7 Packing: (1). For 12/13 X 75mm, 12/13 X 100mm: 1200 PCS per carton Description: It’s used for medical test items as haematology, blood type verification and cross matching test.