Adjustable Lawn Aerator Coring Tool with Soil Core Collection Tray, 4 Tines Manual Yard Air Grass Aerator Gardening Tool for Lawn Care Courtyard,Orange（Updated Box）. 4 Sharp Tines for Easy Penetration:Equipped with four high-strength sharp tines, this aerator easily pierces compacted soil, allowing air, water, and nutrients to reach the roots quickly.
eBay