he stock is a TRIWOOD  (TM) stock. a hi-tec process to improve the walnut grains and to warranty a perfect waterproof protection.TRIWOOD maintains also the warmth and feel of wood, all stocks are different.The walnut quality, its contrast, its grade are extremely important to obtain a perfect TRIWOOD stock. The key point is to have a perfect the mix between the original and additional grains.TRIWOOD is not a film fixed on the walnut; its a process to deposit ink on a piece of wood.The TRIWOOD stock is protected by a tough scratch – resistant semi gloss acrylic varnish.