D'Luca Copper Nickel Alloy Wound Cello Ball End String Set 4/4. This is a set of 4 standard Cello Strings (C-G-D-A). Beginners tend to snap strings when tuning cellos, this is a very necessary and affordable solution. Package includes 4 strings standard tuning for entry level cellos. Set of 4 Quality Cello Strings: C,G,D & A. Stainless steel core flat nickel wound with ball end.