Check the listing for details. (2 Pack) La Bella 840 Folksinger Medium Ball End Nylon Classical Guitar String. Condition: New, Made in United States. Listed at 23.80 USD. The 840 Folksinger set has ball-end clear nylon trebles and Silver Plated wound basses. A special design, the nylon strings include a small ball attached to one end of each string. Easy to use, this eliminates tying each nylon string to the bridge and is suitable for both Spanish style folk and classical guitars.Clear nylon trebles produced greater aural transparency and sound projectionSilver Plated wound basses produce exceptional memory for pitch and consistent sound productionMedium TensionString Gauges: Clear Nylon: .029, .0335, .041; Silver Plated Wound: .031, .035, .044Made in the USA with American WirePackaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness.