This exra light tension set is perhaps the most flexible double bass string on the market. Handcrafted by La Bella artisans, their construction consists of a nickel wrap over a woven wire core. Classical musicians prefer this set for the solo bass repertory tuned one-step higher. Jazz players use the 7720S strings at normal pitch for performing both arco and pizzicato styles. With a longer-life than most bass strings, their amplified tone makes them the number one choice by most professional players including Stanley Clarke, Harvie S. briam Bromberg and Ruben Rodriguez.