"Let's get this rusty tool to shut up!" - regarding Swbo BolgChikin Bob is one of the Bob Duo, an agent of the UNWD, and Elephant Bob's partner in crime fighting.
He is a standard eraser with two arms and a face. His size varies due to his powers. He is creamy white in colour.
He is magical, and his powers include changing his size.
His past prior to the UNWD is unknown, but he did serve in the army with Elephant Bob. 'Bob' is not a name, but rather a title, and the most prestigious title of the force (higher than Steve, Dave, Joe or Mike).