This vintage Western Digital EZ Drive v9.09w computer software is a must-have for any collector or enthusiast. The 3.5" floppy disk is in great condition and ready to be used. The unit type is in pounds and the product is a single unit. The software is from the United States and has not been modified or customized in any way. It does not come with any California Prop 65 warnings. This is a rare find and an excellent addition to any vintage computing collection.