Ordered these on Amazon for my work bench/assembly table. I made it a little bit big for the space but figured having it movable would make it manageable. Pretty happy with the casters, they are supposed to be good for 600 pounds but I have my doubts. Guess my bench with two vices and a few tools might be a couple hundred think another couple hundred would be ok. The screws that came with them are junk, if you don't strip the phillips slot the head will twist off. I just toss them and used some square drive deck screws. All and all a good set of casters for under $30.