This product is a set of seven vintage Bell Brand mandolin and banjo string boxes from the 1930s, made in the United States. Each pack includes strings for mandolins and banjos, providing a nostalgic and authentic option for musicians looking to play on vintage instruments. The Bell Brand strings are known for their high quality and may offer a unique tone and feel when played on classic mandolins and banjos. Perfect for collectors or performers seeking a vintage musical experience.