I've been looking for an inexpensive mandolin for home use and this one is affordable but more importantly works well. By moving the small side black button, it adjusts to three different settings: (1) Wafer-thin -- add to recipes like carrot cake (2) Medium thin -- good for potato chips (3) Average thin -- nicely sliced cucumber. Very easy and quick to use. I save a lot of time trying to cut-up  consistently sliced pieces despite having trained knife skills! Top knob pierces food and guards those fingers. Works well over a kitchen bowl. It's a good product for the home chef.