Hi-Lift Blade / Husqvarna 539 11 20-79Pack Size:1Dixon 539 11 20-79, Husqvarna 539 11 20-79, Yazoo 539 11 20-79Rotary 12124Kees ZEKH52240, ZEKW52210 and ZELKH5225Length: 18 ", Center Hole: 5 pt. star, Width: 2 1/2 ", Thickness: .203 "