This product is available in a 3″X12″ (in) paver. Eco-Promenade is a permeable, plank style paver that is appropriate for pedestrian or vehicular applications and can be manufactured by special order for large scale projects. Special spacer bars create a 7mm gap between Eco-Promenade units which allows water to flow through when installed on an open graded base with a fine stone chip between the joints.