I am both the household chef and dishwasher so I created the butter cutter to save myself the trouble of having to wash an extra butter knife every time I cook something. It works as intended for butter and could also be used for block cheese. The butter cutter also comes with a belt clip so you take it to parties or out on dates to show off your excellent taste in kitchen utensils. Fits standard size butter sticks (1.25" x 1.25" x 4.75")