Part Number: 375-411, 050568 Star Edger Blade Size: Center hole: 1/2", 375-411 Star Edge Knife features 3 cutting edges MATERIAL: Blades are heat-treated for maximum durability and longevity. Reversible for use and a new look, Blade surface is coated with anti-rust paint to prevent rust. Stability. Lower vibration. Effective solution to hard objects bouncing back to avoid the blade hitting the stone and causing personal injuries, Blade is resistant to bending, breaking and snapping. Compatible with: Rotary 2658, Prime Line 7-04444, Foley/PLP 112-454, Edgewater 139030, ESF 112-454, Green Meadow 40-843, Green Line 34335, Quality 181102, Sunbelt SB-2658, Mow More EBS94. Compatible with: Dealer Choice 59-7115, Dealer Choice 59-7130, Oregon 40-843, JThomas EB-STAR-9, Sunbelt B1SB2658, Landscaper Pro UEB843, NHC 211-9677, Napa 7-04444, Arnold AEB-531, EG/F1 1104165. WHMYZHL (2 Pack) 375-411 9" x 1/2" Center Hole Star Edger Blade Compatible with Stens 375-411/Lesco 050568