DR Strings Hi-Def NEON Blue Coated Medium 4-String (45-105) Bass Guitar Strings Hi-Def NEON Blue Coated Medium 4-String (45-105) Bass Guitar Strings DR NEONs are super bright color coated strings that sound clear, bright and musical Players love the bright NEON colors and their remarkable sound Super bright in daylight and under stage lighting, DR's NEON 100% black light active and glow strongly under UV lighting NEONs are the first coated string to make no apologies