Full Set High Quality Cello Strings Size 4/4 & 3/4 Cello Strings, A D G & C Stravilio Strings are made out of high quality Steel core round nickel wound with ball end, to roduce a clear warm tone, Quick bow response and optimal playability , Pitches of one set strings: A, D, G & C, Full Size 4/4 and 3/4 will use same size strings. The Stravilio Company carries three types of Cello Strings all based on it's warmth and depth in it's sharpness and sound. There are Bronze, Silver, and Gold. The Bronze has a beautiful sweet full sound, while the Silver comes along with a much richer and impressive fuller sound. The Gold has the sharpest a most magnificent sound you will ever find in the cello strings industry.