Designed to remove 3/4 in diameter soil plugs from the lawn, allowing compacts soil to loosen up. Easily compacted soil like clay, heavy-traffic areas, playgrounds and sports fields and burned out, drought-damaged lawns. SPECIFICATIONS: 32 heat-treated points, 4 per spool. 10 in x 4 in pneumatic tires. 3/8 in hitch pin included. Up to 3 in aeration depth. 91 lbs. tool weight.