Patent ID: 8157094

Claim:
A container apparatus, comprising: a base plate having a first side and a second side; a sidewall arranged on the first side such that the base plate and the sidewall form a room, the room having an aperture opposite to the base plate, the sidewall substantially following a shape of the base plate, the sidewall including a mating structure which comprises a plurality of attachment devices; and at least three wheels arranged on the second side opposite to the sidewall; wherein at least two attachment devices of the plurality of attachment devices are different, the at least two attachment devices being regularly arranged according to a grid, one of the at least two attachment devices being selected from a group consisting of a hole, a bore, a knop, a magnet, a pin, a hook-and-loop fastener, a screw, a hook, an eye, a button, a zipper, a buckle and a clasp; one of the at least two attachment devices being selected from the group consisting of a knop, a magnet, a pin, a hook-and-loop fastener, a screw, a hook, a button, a zipper, a buckle and a clasp.