The material is PET and glass 
The volume 1ml-10ml 
1. Puncture one time for collect multi-tube use together with blood collection needle unnecessary add any other reagent in tube 
2. With protect cap convenient for mix blood and reagent, avoid loss or contaminate samples during transport 
3. Protect cap with international color code avoid mistake when transport convenient for store blood sample avoid volatile 
4. International specification fit to equipment can be used on equipment directly