they are a series of pedals. just like the link says, an overdrive pedal.
The Gear:

Custom Strat
Mesa Boogie Stiletto Ace
Fulltone OCD
Electro Harmonix Small Clone Chorus
Dunlop Crybaby Classic
MXR EVH-117 Flanger
Fulltone Soul Bender
It looks like a standard overdrive pedal to me.

Anyone see something abnormal about it?
It is a pedal...a "stomp box" actually. That one is a vintage overdrive. has adjustable level output and color / drive shaping controls.
Washburn N4
Gibson Les Paul Standard 60's neck
Warmoth Strat w/ SD and fender PU's
Carvin VL212
Boss GT-10
Quote by 365_days_gone
Well it just has a button on it...and looks like a small button...is it easy to switch on and off?

Well, the button looks pretty much the same as the buttons in ie. Big Muff, and they were designed to stop on them. So yeah, it should be easy.