We have very high cabinets and shelves in our new house and needed a step stool that was light weight, easy to use and easy to store, but that allowed us to reach high places.  This perfectly fits the bill.  We store it in a small vertical space between the refrigerator and the wall, and it just slides open, and to close it you just pull the top step up and everything slides back together.  It's easy to carry around, and very sturdy when standing on it, even on the top step.  I wish I could post a picture of how it stores.  Ultra useful piece of equipment!