Hi-Lift Blade / Simplicity 1679916ASMPack Size:1Simplicity 1679916, Simplicity 1679916ASM, Simplicity 1679916SM, Simplicity 1679916ADealer Choice 50-2001, Green Meadow USIM23, NHC 212-0430, Oregon 91-703, Oregon 96-692, Prime Line 7-04986Simplicity GTH-L, 700, 900, 1900 and 7000 series; requires 3 for 48" deckLength: 16 3/4 ", Center Hole: 1 ", Width: 2 1/2 ", Thickness: .203 ", Left hand blade