- Made of medical grade polypropylene
- Colored caps optional
- O-ring secures a perfect seal tightness
- Conical bottom and Self-standing type
- Can be repeatedly frozen and thawed
- Universal screw threads
- Volume 2ml, 3ml and 5ml volume are available
- Sterile both are availableml
- Autoclavable to 121°C and freezable to -86°C