DR Strings Hi-Beam - Extra Long Scale Stainless Steel Round Core 45-105 Gauges: 45, 65, 85, 105 Fits a 37" scale bass and are wound up to 40" Hi-Beams require much more time, care, and extra steps to make than other bass strings The extra effort DR expends making Hi-Beams results in a bass string that is highly flexible, musically bright (not harshly bright) and renowned for durability, unusually long life, consistency, and string-to-string balance They don't eat your frets