All I know is I saw it in a Sam Ash. I've been gassin' I'm thinking 5er or fretless, I dunno. I thought this one looked interesting. It's a 5er and a fretless. Played it. Liked it. Traded my Longhorn for it (with some boot of course). They just called it a Steinberger Fretless 5string. I gather it's a Gibson Steinberger. I think it's an XZ25F. ser# says it's an '02. It's a cheapy I know, but the reviews I'm reading are like "pleasantly surprised" for the $ etc. I've also read that they were discontinued as fretless in '04. I really like it. Is it worth keeping? Am I right about what it is?