. 3' x 3' cubes include top and bottom mesh panels. . Polyurethane slide-in trays can be used on top of the mesh panel if your pet has small paws or positioned under the mesh panel to allow droppings or litter to fall through into the pan. Easily washed and disinfected. One tray is included with each cage. . 3/4" Black powder-coated steel frames on individual 34 1/2" x 34 1/2" panels with 11 gauge mesh welded to frames. . rolling frame with 3" lockable caster wheels for easy moving. . Stackable, or can be used as stand alone cages. (can be bolted together) . Easy to use slide latch.