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.

I'm a novice diy'er and bought these little wheels with brakes. The locking feature also differentiates from other wheels.

Box was torn open. Poor quality rubber. Did not support rated weight. The twelve i bought are defective all of them.

The locks are awful. The wheels don't even turn freely, they're jammed/seized in the frames! And the locks don't work at all, won't stay in the locked position, are impossible to adjust.