High Mass Brass,... Solid, .... Best and only upgrade I've ever performed on my Rickenbacker Bass ! Adjustments are soo much better than the Ric's,... and Wow the sustain is Killer !!! The Original Ric's bridge sustain died out way to early.... but this Hipshot High mass bridge is "The Boss" !!!! My Ric sounds soo much richer and fuller than ever before !
i haven't had it on long enough to review,but it did change the sound when i installed it,the screws
could be better,they stripped easily,but overall the bridge is nice