MARSHALLTOWN The Premier Line 3629 8-Inch x 4-Inch Stainless Steel Combination All-Angle Walking Edger; 3/8-Inch Radius, 1/2-Inch Lip Made of heavy 16 gauge stainless steel Abrasion tests show these edgers will wear twice as long as other stainless steel edgers Cast aluminum combo adjustable bracket riveted to a welded steel plate