A cheap, flimsy item.
Not going to last that long if used often, I suspect.
The main body is of very thin metal and it flexes during use, causing the wires to hit the main body when cutting eggs.
It is also not that well made to start with, so even with no egg in it the wires rub the slots in the body when closing it.
It looks just like the one my father has, that is over 40 years old, but I doubt this one would last 4 years.
EDIT April 2013.
In fact it lasted barely 4 weeks!!!
After slicing 2 packs of 6 eggs successfully over the last month the wires came loose on the 3rd pack, 2nd egg. It only lasted 14 eggs in slightly under 8 weeks. I did not put it my dishwasher as it was advised not to.
Conclusion: This item is cheap rubbish that will stop working in no time at all, and is best avoided.