Ko-Tips is personally adapted and developed by the KO brothers.
They are made in Japan, and made with eight layers of pigskin.

The brothers have developed 3 tips:
S: Softer tip, suitable for hard shaft and for people who like to play lightly.
M: Medium to hard tip. Suitable for softer shafts, and people who like to play a little harder. Push harder. H: Hard bumps, but not a stiff tip. This is not a break tip.