LaBella 820 La Bella Guitar String Set "Bright Tone Medium Tension String gauges: Red Nylon .029, .034 .041. Silver-Plated Wound .029, .034, .042. Made in the USA with American Wire Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness" Medium Tension "String gauges: Red Nylon .29, .34 .41. Silver-Plated Wound .29, .34, .42." Made in the USA with American Wire Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness