The product is manufactured from optically clear, virgin polystyrene. The culture surface is specially treated to achieve optimal cell 

adhesion properties, facilitating strong attachment for a wide range of cell types and ensuring exceptional performance. 

It is currently available in four sizes: 25 cm², 75 cm², 175 cm², and 225 cm², with both sealed lids and vented lids offered as lid options.

The product is available with two lid options: sealed lids and vented lids.

The vented lid is equipped with a 0.22 μm hydrophobic membrane, providing an effective barrier against microbial contamination.

The sealed lid features a dual-indicator switch structure, allowing for semi-open or fully closed culture conditions.

Both sides of the neck are frosted for easy labeling and identification.

The back and base of the bottle are designed with corresponding stacking rings, facilitating easy transfer and stacking.

The bottle features an angled neck design, ergonomically optimized for improved accessibility with pipettes or cell scrapers, 

enhancing the operational range of the culture flask.

Both sides of the bottle are marked with graduated scales for convenient observation.

Non-pyrogenic, endotoxin-free, and free of DNA/RNA enzymes, with a sterilization assurance level (SAL) of 10-6.