Koa wood ring with hammer forged titaniumYou just found the coolest ring every, congrats! :) Koa wood comfort fit interior is steam bent for the most durable wood ring possible. This hammered ring will only look better with abuse. It's a great ring for guys that work with their hands and tend to be rough on things. But if gets a little to beat up we refinish these ring for free under our lifetime warranty so it will look just as good at Applebee's as it does in the garage. Wood is sealed