สายเชลโล D Addario รุ่น Kaplan KS510 และ รุ่น Helicore H510 Duo pack (ชุด) The Kaplan/Helicore set balances the soloistic qualities of Kaplan Solutions strings with the clear, warmth of Helicore strings. Set includes Kaplan Solutions titanium wound A string and nickel wound D string with Helicore Tungsten/Silver wound G string H513 4/4M and Tungsten/Silver wound C string H514 4/4M. Made in U.S.A
