This stainless steel coring plug aerator is made of all-steel, with a sturdy and durable handle and2 comfortable non-slip grips. No need to worry about calluses when using it, the surface has a non-slip texture. Sturdy and durable. Not easy to deform. It only takes 1 minute to fix the bottom coring plug aerator to the pole with handles, and it can be used immediately. The plug size is 3.5 x 0.5 in. which allows water and oxygen to enter more easily. It effectively reduces soil compaction and allows air, water and fertilizer to penetrate more easily into the grass root zone. It can easily penetrate into any type of lawn soil, helping you prevent lawn runoff and soil compaction, and improve the quality and durability of your lawn.