1. The bottle body is made of PETG material, with high transparency and not easy to break; 2. The smooth and transparent surface of the erlenmeyer flasks reduces the risk of cell adhesion 3. The erlenmeyer flaskis firm and not easy to break, which can reduce personal safety hazards; 4. The scale of the erlenmeyer flaskis clear and accurate, which is convenient for observing the medium capacity; 5. The erlenmeyer flaskhas good chemical resistance and can withstand a variety of chemicals; 6. HDPE bottle cap, antibacterial and breathable to prevent microbial contamination; 7. Individually vacuum packed to avoid cross contamination