1. Utilizing stateoftheart ultrafine spray technology, additives can be evenly coated on the inner wall of the test tube, ensuring complete mixing of blood samples and additives. 2. The vacuum blood collection tube is made of quality glass material with transparency and a clear interior. Blood collection volume: 2 ml / 5 ml / 10 ml; Additive: K2EDTA; 100 pieces per pack. 3. Colorful labels and caps for easy sample identification. The tube can meet various experimental requirements and is suitable for venous blood collection. 4. Strong sealing: Each blood collection tube is vacuumsealed to effectively prevent blood leakage and gas entry. The operation is safe and reliable, complying with standards.