Welcome to All Music Inc's Musicdungeon, you are looking at a fantastic Boss example. This is the Boss DD5 Electric Guitar Delay Pedal, Owned by Steve Vai. This Boss was part of Vai's childhood home practice rig, so Steve could practice and write when he was on Long Island visiting family. As you can see in the email, Steve told his nephew where in the house to find his bag of pedals, so this has not only been used extensively by Vai himself, but has been soaking up that Vai house mojo for over a decade. Outside of the fantastic lineage, this is a great delay on its own. The DD-5 has up to 2 seconds of delay time and features a unique hold mode that allows up to 2 seconds of input to be recorded for creating "sound on sound" loop-type performances. This DD-5 is in very good condition as you can see in pictures, all wear is from Steve Vai himself. We have the rest of the Long Island practice rig listed separately, more pedals, Carvin Legacy, and Steve's JEM. Don't pass this by!