Set of 4Robust, inexpensive solid core steel stringsWith their solid core, these steel strings are strident in tone and feel, lending the sound brilliance and enhancing the player's confidence on the instrument. Precision are by no means a new invention and are based on the original ideology of Dr. Thomastik and Otto Infeld. They have been produced in consistent quality since 192, constantly being updated to incorporate the latest technical findings and our wealth of musical experience. Precision strings are ideal for students, ensemble players and folk musicians. This standard model has remained popular to this day, not only because of its price range but its long playing life.