Almost perfect
These are so helpful to keep small or odd-shaped items from falling over, and the fit was perfect for my shelves. If they were just a bit heavier I would give them four stars. I feel these may easily dent if something is dropped on them. All in all I certainly recommend these for wire shelving.
Must Haves!
Recently I created a pantry for my small apartment. After getting wire shelving, it became pretty clear that the best use of them was to get the shelf liners. Once you put the liners on your shelves, you won't ever do without them! The liners allow you to put anything you want on the shelves without things, like legs of small appliances, from falling through the spaces on the shelves and therefore, unbalancing anything you put on them. I have liners on every shelf of my shelving units.