2-WAY type with diameter 2 mm and 3 mm tip at both ends,
Small ears can use 3 mm and usually 2 mm on the way and the children.
Touching the ear piece is soft too and couldn't clean the ear canal will get scratched up and stiff.
But subtle "and become" corner of the curve of the ear canal will enable to clean the well.
Can be easily scraped any angle 360 degrees in a screw-type the "U-shaped", take it easy with a tissue after ear cleaning Earwax is hygienic.
In addition, Earwax to darken the color of the tip with a balanced understand.
To use advanced resin parts such as anesthesia equipment use polyacetal resin, ear-friendly material.
And processing of non-slip pattern piece so often used in medical devices NET eye pattern.