The Yard Butler™ lawn coring aerator revitalizes old lawns while using less water and fertilizer. By removing two plugs 3in inches long, this manual lawn plug aerator and de-thatcher reduces compaction and thatch to let air, water, and fertilizer down to the root zone. At the same time it stimulates root growth by pruning‚ the roots. As an added benefit, the removed cores deposit valuable micro-organisms on the lawn surface. This also strengthens drought and heat tolerance in your turf. The heavy-duty powder coated steel handheld lawn corer is built for a lifetime of use.