Ensure you get the right blades, look up the mower blades you need at https://partscatalog.deere.com/jdrc/. Or put the make, model and serial number of your piece of equipment in the comments when you order and we will check it before we ship the parts.
72-inch High Lift Mower Blade for Z900 ZTrak Series.
Sold individually, purchase 3 for a full set. Blade length: 24.984 inches
TCU15882 replaces M143749.