Catgut suture treatment produces roughly twice the stitch-holding time of plain catgut, but greater tissue inflammation occurs. Full tensile strength is extended to 18–21 days. It is brown rather than straw-colored, and has improved smoothness due to the dry presentation of the thread (plain catgut is wet). It is otherwise similar to plain catgut. Fast catgut suture is heat-treated to give even more rapid absorption in the body. The first known absorbable sutures were made of the intestines of sheep. The manufacturing process was similar to that of natural musical strings for violins and guitar, and also of natural strings for tennis
Sursingar It has two resonant boxes; the main box is made from a cut gourd, on which a wooden cover is attached. The main body is made of wood and not leather (the material used in earlier instruments). The sound producing mechanism of the instrument is formed by a gourd. The gourd is attached to a hollow wooden handle. The handle is sometimes covered with a metal plate to facilitate the glissando. It has four main strings and four rhythmic drones ("chikari"). The strings are usually made of brass (instead of catgut used in earlier instruments). These modifications resulted in the