LaBella 2001MH Classic Med.Hard Tension Nylon 202 trebles produced greater aural transparency and sound projection Silver-plated wound basses produce exceptional memory for pitch and consistent sound production Medium Hard Tension String gauges: Clear Nylon Trebles: .029 .0335 .041; Silver-Plated Wound Basses: .0285 .0335 .0435 Made in the USA with American wire.Packaging might vary.