Colored tampons: proprietary color markings, corresponding to different volume specifications, for easy identification.

Standard narrow mouth (1ml & 50ml) for general use, tissue culture, etc.

Wide mouth (5ml & 10ml) is used for viscous solution food, life science, etc.

No sharp mouth opening (1ml & 10ml), used for various viscous solutions or suspensions, food, cosmetics, life sciences, etc.