Gauges: 45, 65, 85, 105 Bass – Steel – Medium Scale – 4-String Set These flatwound bass strings provide a clear, solid fundamental and superior tonal versatilityrolling off your bass tone knob takes you from a modern and articulate punch to the deep, mellow thump flats are famous for. Winding length is 34″ from ball to silk. MFSKU DBFS45105M UPC 710137107571