This a unique eco violin in all over the world, made from used blue jeans - denim. Only the fingerboard made from wood. Looks nice and play very good country and folk music. This a unique violin . For all my original musical instruments, I give a guarantee of free repair because I am the only one who construct this instruments. This instruments is sold ,but i can made a new one. I put here and one sound sample. http://www.muziboo.com/ivigo/music/jeans-denim-violin-sound-sample/ and video http://www.youtube.com/watch?v=1qKwQ-vuOjQ All this violins is the first i make and is a prototype. Is a full playable ...but have 1 or 2 small problem in some points. For this reason this violins is only for the exhibition and shows and not for a sold. If someone wants to buy one, would I make a new similar in appearance but not the same . All the instruments is unique. If someone wants something special, can send me and the material that wants to build a musical instrument.