Pirastro's Olive strings are the best in the world. Olive strings are used by some of the most renowned violinists in the world. The strings are produced with the highest quality winding and gut core. The sound deliverance is by far the fullest in warmth and brilliance. Tonal quality is completely unsurpassed by any other string. The goldplated E string further complements this SET of superior gut strings by providing a very bright and responsive high register treble. Made in Germany. Available in 4/4 size only.