★ Vacuum blood collection tube are made from medical grade glass material. High transparency, allowing you to observe the inside status, Blood collection volume 5ml/10ml; Additive: K2EDTA; 100pcs/pack ★ Excellent outfits with super-minute technique can spray addictive uniformly on the inner sur-face of the tube, thus blood specimen can completely mix with the additive. ★ Colored coded label and cap for easy samples identification. The test tubes can meet different experiment needs, can be used for venous blood collection. ★ EDTAK2 tube is widely used in clinical haematology, blood grouping as well as various kinds of blood cell test instruments. ★ Perfect for veterinary practices, laboratories, and research institutes, these tubes are indispensable tools for conducting experiments and analyses with precision and reliability.