Patent ID: 8882398

Claim:
A retaining wall block connectable to another retaining wall block, the retaining wall block comprising: a front face, a top surface and a bottom surface, a pair of sidewalls extending rearwardly from the front face, between the top and the bottom surfaces, a pair of elongate spaced apart bottom grooves in the bottom surface, wherein the pair of bottom grooves are oriented transversely to the pair of sidewalls, wherein the pair of bottom grooves define an elongate bottom protrusion therebetween, wherein each one of the pair of bottom grooves has a pair of opposing side edges and a groove width extending between the side edges, and wherein the groove width of a first of the pair of bottom grooves is substantially equal to the groove width of a second of the pair of bottom grooves; and a pair of elongate spaced apart top projections in the top surface, wherein the pair of top projections are oriented transversely to the pair of sidewalls, wherein the pair of top projections define an elongate top groove extending therebetween; wherein the block is connectable to the other block in one of a first position where the front faces of the block and the other block are aligned, and a second position where the front faces of the block and the other block are offset, wherein, in the first position, the bottom protrusion of the block is received within the top groove of the other block, and wherein, in the second position, the pair of top projections of the other block are received within one of the pair of bottom grooves of the block.