Strings (tennis)
In tennis, the strings are the part of a tennis racquet which make contact with the ball. The strings form a woven network inside the head (or "hoop") of the racquet. Strings have been made with a variety of materials and possess varying properties that have been measured, such as dynamic stiffness, tension retention, thickness (gauge), string texture (shape of the string), and rebound efficiency.
Suroz
It has three or four main strings for playing which are tuned 1. low E - 2. low A - 3. a (440 Hz) - 4. e. Strings one, two and four are made of steel while string three is made of thick gut. there are five to eight sympathetic strings, made of thin steel and tuned according to the raag to be played. The playing strings are some millimeters higher on the bridge than the sympathetic strings, so that the latter cannot be touched by the bow. The strings are not played like on the sarangi by pressing them with the nails, but by touching them with the fingers, but without pressing them onto the neck.