DR Handmade Strings NRB5-45 K3 Neon Hi-Def 5 Bass Guitar Strings, Medium, Red Gauge: Medium (5-String) Red Coated Bass Guitar Strings on Round Core Players love the bright NEON colors and their remarkable sound Super bright in daylight and under stage lighting, DR NEON is 100% black light reactive and glow strongly under UV lighting While Neons last as long as a coated string should (three to four times as long as uncoated strings) they sound as good, or better, than uncoated strings