Aerating the lawn reduces compaction that can build up over periods of heavy use such as during in the summer the aeration increases the flow of moisture to the grass roots as well as helping the roots get the oxygen they need to live and grow healthily this handy aerator has hollow tines that remove plugs of soil from the ground allowing air and moisture to penetrate to where they are needed the roots of the grass it measures 93cm x 30cm x 45cm and weighs just 205kg kingfisher lawn aer