Stradivarius refers to a family of string instruments, primarily violins, made by the Italian luthier Antonio Stradivari in the late 17th and early 18th centuries. These instruments are renowned for their exceptional craftsmanship, rich sound quality, and aesthetic beauty. Stradivari's work has made his instruments highly sought after by musicians and collectors alike. The term "Stradivarius" is often used to describe any high-quality string instrument, but it specifically pertains to those crafted by Stradivari himself. Only about 600 of his instruments are known to exist today, making them rare and valuable. Their historical significance and superior sound have solidified their status in the world of classical music.