Hound Dog HDP35 Coring Aerator: * Coring aerator * Allows for the free flow of water, air, and fertilizer to reach the grass root system * Large foot step allows you to plunge the two hollow cylinders in the ground with your foot to extract 4 inch plugs of soil * Unique up-right handle is easy on your back * Durable, all steel construction is lightweight to self-eject and lift the cores effectively * This tool breaks down thatch to cure troubled spots * 1.252 in Wide x 9.5 in Long x 36.92 in High