DR Strings Electric Bass - Sunbeams™ Nickel Plated on Round Cores Lite, .030 -.125, NMR6-30star rating 5Matt ONovember 9, 2009Sunbeams are hard to find (at least in the 6-string version), but sooo worth it. I've been playing 6-string bass for about 15 years now & nickel really makes all the difference! These just sound better and longer than anything else.