Bon 62-345 6-Inch by 4-Inch Stainless Steel Curved End Concrete Edger with 1/2-Inch Radius and 5/8-Inch Depth Comfort Grip Handle
Price 9.52 USD
Used to produce a radius at the edge of concrete to prevent the end from chipping or breaking off. Curved ends help prevent edger from digging into fresh concrete.