This is my third OXO cheese slicer of this design. The other two broke. Why would I buy one again? Because this one is all steel. The other two were plastic. This is the best design I have seen in a wire cheese slicer. The replaceable stainless steel wires have molded end caps that hold it securely in place. The single thumb-wheel easily tightens the wire. Although I have never had a wire break you get a couple extra wires with the slicer. The wires can also be bought separately. The price was not bad either!