The 0760M set was used on virtually every Motown gold record in the 1960s. Donald “Duck“ Dunn used the same strings on countless recordings with Otis Redding and Booker T. & the MG's. They're the fullest and deepest sounding bass strings ever made.- Stainless Stel Flat Wound strings constructed with thick cores to produce full, deep, vintage tone- Tension: Heavy- String Gauges: .052, .073, .095, .110- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness