A&I 16-1/4" 5/8" Notch Blades (Set of 6) - B1FE1048,6 Replacement XHT Lawnmower blade. XHT(Xtreme Hardness & Toughness) blades are 25-40% harder than standard lawnmower blades. Benefits of the HXT blade are sharper and longer lasting cutting edges. More resistance to bending. XHT blades also offer greater impact toughness. (3) blades for 48" cut. Fits new iCD decks. Center Hole: 5/8" Length: 16-1/4" Thickness: .250 Type: Medium Lift - Notched Width: 2-1/2" Fits the following Models: Ferris (UNDEFINED): SEVERAL (48") Snapper (UNDEFINED): SEVERAL (48") This is an aftermarket product, not an OEM. Thanks for looking!