When my mat goes in the maker it just slides itself to make it work without any troubles. With the wheels, it moves easier and the vacuum can get under it. Now when i need the occasional tool, it rolls out without a fuss.

I put 4 wheels on it and as soon as i turned it over and the weight on wheels 2 wheels broke off.

The cabinet is about 6 feet tall so wanted smaller wheels for it. Have purchased several sets and have had no issues with any of them. Having large fastening screws and washers were a plus.

They work great on smooth surfaces and not so much on gravel. They have smooth operation with good bearings and good mounting plates. Great rollers, easy to install, comes with everything you need.