Abstract: A mobile device suitable for permitting banking transactions and a material for constructing such units. The mobile banking device includes a housing mounted on a platform extending upward therefrom. The outer housing defines an interior area sufficient to accommodate ingress and egress of appropriate service personnel. The device includes at least one customer transaction interface unit such as an ATM device mounted in one of the walls and accessible from the exterior of the outer housing. The mobile device also includes at least one set of wheels attached to the platform and extending downward therefrom and a suitable device for emitting discernable evidence of unauthorized breaches in the outer security of the housing such as an audible or inaudible alarm. The outer housing can be constructed from a material first and second planar layers composed of a polymeric resin positioned a spaced parallel distance from one another and an intermediate polymeric sheet interposed between the two planar layers.