6mm Double Row Tungsten Ring Made With Genuine Koa Wood Inlay! Mens or Women's Band This tungsten wood ring is made out of 100% real koa wood. The top of the wood is covered by a high quality resin that makes it waterproof and much more durable. The rest of the ring is crafted with the best tungsten. The outside of the ring as well as the inside is made with tungsten and finished with a high polished finish. Comfort fit! The profile of this ring has been designed with a oval design making it extremely comfortable. Wood Tungsten rings are not as durable as a solid tungsten ring but these rings can still withstand minor wear. The tungsten does not scratch. 30 Day Money Back Guarantee!