DESC: Go for the original with the slinky feel and the fat tone. Gauges 45-65-85-105. Made from stainless steel wire wrapped around tin plated hex shaped steel core wire. Produces well balanced, all around good sound.The list of endorsers for Ernie Ball Slinky bass strings reads like a who's who of modern rock bass. Made in the USA with specially formulated alloys for long life and maximum vibrancy. Ernie Ball is the pioneer of rock and roll guitar strings. Setting the standard for the industry has enabled Slinky strings to become the world's top selling brand. Jimmy Page, Eric Clapton, Steve Vai, and Slash are among the long list of Slinky players.