Aerating a lawn and spreading seed and fertilizer in the spring and fall are essential ways to have a green, luxurious lawn. This 40 inch Combination Aerator-Spreader helps get these projects done quickly and easily with only one attachment. The 120 pound capacity hopper drops seed, fertilizer, or lime while galvanized tine stars aerate the lawn to allow water, air and nutrients to get to the lawn's root system. Having a lawn like a pro has never been easier.