Abstract: A support structure has a base with a top and recesses. Inserts are mounted in respective ones of the recesses. Each insert has a protrusion that extends from the insert. The inserts are reversible and invertible. The inserts include: a first configuration where the protrusions extend above the top of the base and are located in a first position; a second configuration where the protrusions extend above the top of the base and are located in a second position that differs from the first position; and a third configuration where the protrusions extend into the recesses below the top of the base such that the inserts are flush with the top of the base.

Abstract: A system and methods for stabilizing a towed trailer include a stabilizing accessory system that both stabilizes the trailer and stows upon a frame of the trailer for transport. The system includes a wheel chock that detachably attaches to a stabilizing block. The stabilizing block features an elevated wheel dock configured to receive a jack wheel of the trailer, a post recess configured to receive a square or round jack post of the trailer, and a plate recess configured to receive a plate jack stand of the trailer. The stabilizing block may be secured to a frame of the trailer via a securement strap or via a switchable magnet embedded within the block. The wheel chock is configured to immobilize a trailer tire and may secure to the frame via its attachment to the stabilizing block, supplemented by a magnet embedded in its bottom surface. Other embodiments are disclosed.

Abstract: A system and methods for stabilizing a towed trailer include a stabilizing accessory system that both stabilizes the trailer and stows upon a frame of the trailer for transport. The system includes a wheel chock that detachably attaches to a stabilizing block. The stabilizing block features an elevated wheel dock configured to receive a jack wheel of the trailer, a post recess configured to receive a square or round jack post of the trailer, and a plate recess configured to receive a plate jack stand of the trailer. The stabilizing block may be secured to a frame of the trailer via a securement strap or via a switchable magnet embedded within the block. The wheel chock is configured to immobilize a trailer tire and may secure to the frame via its attachment to the stabilizing block, supplemented by a magnet embedded in its bottom surface. Other embodiments are disclosed.