Toothed Blade / AYP 187256Pack Size:1AYP 187254, AYP 187256, Husqvarna 532 18 72-54, Husqvarna 532 18 72-56, Husqvarna 539 11 20-53, Husqvarna 777187256Home Depot 302419, Lowe's 234016, Outdoor Factory Parts HU22054, Oregon 95-605, Oregon 595-605, Oregon 95-072, Rotary 11180, Sunbelt B1EP1050AYP 2004 and newer; requires 3 for 54" deck; Husqvarna Requires 3 for 54" deckLength: 18 1/2 ", Center Hole: 5 pt. star, Width: 2 1/2 ", Thickness: .187 "