Why else are they so great? The bottom has a rubber over it and keeps it from moving around on the counter and they will not move a hair. They do come with lids, yeh they could be a little better, but that won't stop me from using them cause they bowls are seriously the best ones I have ever tried. I will use them when I need to store a food in the fridge or something so they are a bonus to have.
Clean up is easy, I had wash them and of course they stack. Comes in a set of 3 and of course they are stack-able, since they are different sized. Really, the KUKPO Plastic Mixing Bowls are a must have for any kitchen and for such a good set they are, they don't cost an arm and a leg!!
Purchase KUKPO High Quality Plastic Mixing Bowls Set HERE
Disclosure: I received this product complimentary for an honest review, all opinions are my own.