Check the listing for details. Snooker Cue Tip Kamui Black & Original Various Sizes Densities. Condition: New. Listed at 19.04 USD. Kamui tips are made of vegetable tanned leather. Vegetable tanned leather is a far superior process in durability and elasticity compared to chrome tanned leather. However, vegetable tanned leather has a tendency to absorb moisture which degrades the performance of the durability and elasticity. Kamui introduced a special treatment in the tanning process to make the KAMUI leather humidity resistant.This specially treated leather maintains the elasticity and the durability of KAMUI tips in all seasons and even in high humid environments. The mushroom effect of a cue tip is due to the lack of durability from cue ball impact. A mushroomed tip does not allow you to apply accurate side on the cue ball. In the tanning process of Kamui leather, the process is frozen at a certain point to get the.