A traditional Han Chinese instrument, the erhu is a bowed string instrument with a long wooden neck. The instrument is played by a putting pressure on the erhu string and running a bow. Unlike western bowed instruments, the horsehair bow is thread through the erhu strings and is not pulled across the top. The erhu features two strings, an A and D string. The larger D string is typically wound with chrome, while the A string is plain steel. As a trusted source of exotic, hard-to-find instrument strings, JustStrings.com carries erhu strings by Pirastro and Thomastik-Infeld. The Pirastro Red Dragon erhu strings were designed in collaboration with professional erhu musicians, and the strings provide a clear, very bright and powerful tone. To capture the characteristic bright erhu sound, the Thomastik-Infeld strings feature a tin coated, steel A string and a chrome wound, steel core D string. To ensure customer satisfaction, our erhu strings are shipped quickly, and United States customers will typically receive their strings in two to four business days from the ship date.