DR Strings LR 5-40 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. Hi-Beams are the string to choose for brightness, and ease of playing. DR H-Beams fit virtually all scale lengths up to 37 3/4".