This a unique eco violin in the world, made with used synthetic leather at the top ,back and the ribs. The neck and the fingerboard made from used paper. 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. I put here and sound sample from this violin. http://www.muziboo.com/ivigo/music/synthetic-leather-violin-sound-sample-1/ http://www.muziboo.com/ivigo/music/synthetic-leather-violin-sound-sample-2/ 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.