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
Pena (musical instrument) is also tied to the instrument tail. The bow is wooden and bears a curved flourish at one end which is made of metal. In some parts, the bow also features tiny metal bells. The string is traditionally made of horse hair but, sometimes, metal strings and strings made out of wood fiber are also used. Pena (musical instrument) ꯄꯦꯅꯥ(Pena) , also known as "Tingtelia" in Tangkhul Language is a mono string instrument falling in the lute category, similar to some of the traditional Indian stringed musical instruments such as Ravanahatha, "Ubo" or the "Kenda", found in various parts of