Hi-Beam stainless steel bass strings are round wound and constructedupon a round core, which is unique in the industry. Hi-Beams requiremuch more time, care, and extra steps to make than other bass strings.The extra effort DR expends making Hi-Beams results in a bass stringthat is highly flexible, musically bright (not harshly bright) andrenowned for durability, unusually long life, consistency, andstring-to-string balance. They don’t eat your frets.