These are great. I used them to divide drawers in our kitchen. The thing to watch for is that the dividers can move if you squish something against them. I also have organization trays, but these gadgets offer more flexibility to define the width of space needed for kitchen tools instead of hunting for the "perfect tray". I even put one in one of my pull-out drawers where I store cooking pans. By placing the divider along one side, I created a storage slot about 2" wide to store pan lids and it works perfectly! Anyone who cooks knows lids are always a nuisance to store.