The 490R CC Humbucker Pickup is a neck pick up that goes really well with the rockier spectrum of music, after getting them and opening them up the quality of these pups was obvious - sturdy, well built and trust worthy, i wouldn't expect anything less from a Gibson product! They were easy to fit, fell straight into place on my Epiphone Firebird, plugged it in and turned it up and the result was astounding! the beautiful warm cleans and thick dirty distorted sounds that were ringing out of my previously dull Firebird blew me away, it sounded like a completely new guitar worth far more than its original cost, if your looking to upgrade your pups to find a great 'gibsonesk' sound then look no further, these are really, really great pick ups!