Goplus Rolling Lawn Aerator, Filled with Sand or StoneASIN: B0CV9Q15HL, B0CV9CVCXX The Effective Tool for Maintaining a Healthy Lawn! Our lawn aerator measures 18 x 5. 5 x 51 21 x 5. 5 x 51 (L x W x H). It is designed to reduce soil compaction and facilitate the entry of air, water, and nutrients into the soil, promoting healthy root growth and lush green grass. Featuring multiple sharp tine spikes that are strategically placed, this rolling lawn aerator can efficiently penetrate various types of soil