The Agri-Fab 48 inch tow plug aerator is designed to remove 3/4" diameter soil plugs from the lawn, allowing compacted soil to loosen up. Easily compacted soil like clay, heavy-traffic areas, playgrounds & sports fields & drought-damaged lawns. Specifications:48" weight tray holds up to 175 lb. for increased soil penetration 8 spools of aerator knives, galvanized for rustproof durability 10" x 4" solid wheels allow for smooth transport Simple-to-use cantilever transport handle for easy raising & lowering Manufacturer's 3 year warranty