Review on Twin Wheel Caster Solutions TWUN 60U T03 BK by Jeremy Carpenter

I bought these to use on an 18" deep x 30" wide Seville wire shelf that uses 3/4" posts. They were great and easy to install. The wheels that come with the wire shelf are just junk. These good wheels should come with a roller. Advantages: I can move a loaded shelf very easily. on carpet, parquet or cement, roll on pretty much any surface. I gave 3 stars because the wheels are very expensive. I spent $42 for 4 wheels and paid about $60 for a shelf, so that's over 50% the cost of a shelf. I recommend wheels but you have to pay a good amount of money.