it has a roller behind it to keep it up against the cheese block and it slices through the cheese nice and neat.

https://www.amazon.com/Bellemain-Adjustable-Thickness-Cheese-Slicer/dp/B018MLW8MG/ref=sr_1_5?dchild=1&keywords=wire+cheese+cutter&sr=8-5

I remember my family had this and it worked OK but if money is no object, I think the electric version is way better. I'm not sure if one brand is better than another.