Ecology Blocks are large concrete blocks, manufactured from left-over or unused concrete. Concrete, that in years gone-by would have been dumped and wasted or taken away to a land fill site, is saved and converted into a recycled construction product, hence the phrase Ecology Block. The blocks are cast into either a half block or a complete block and use just about a half or a full yard of concrete (blank). The dimensions for these blocks are 2’ X 2’ X 3’ for a half block and 2’ X 2’ X 6’ for a complete block. Each block is cast with a 3” radius tongue and groove, for interlocking security, in stacking applications. The full blocks weigh approximately 3850 pounds and the half blocks are 1900 pounds.