The best recommendation i can give. Includes bolts for some reason. Great value for the money. The nuts and bolts that come with it are good quality.

These roll, swivel, and lock really nicely. The only small complaint, is the locks are difficult to unlock. Rotate on two perpendicular axes.

Already had them on 4 different concrete surfaces, inclines, ramps, etc. They easily traverse the concrete lip at the opening in my garage and seem to hold up wonderfully. They allow easy relocation to and from my active work area.

Have tried many different ones and really got tired of disassembling everything to replace or fix broken and bent wheels. These wheels are awesome.

Put on a tool cart weighs 3 or 4 hundred pounds. They seem to be pretty heavy duty. Can push a heavy thing pretty easily now.

Each caster swivels 360 degrees on ball bearings. They are very smooth rolling and swivel just as smoothly. The casters are so easy to maneuver that i don't even have to move from the couch to adjust the ottomans.

The keyboard weighs about 80 pounds and i needed to be able to move it around the room to various locations. My subwoofer weighs 90 lbs. I plan to use these on a router table in my garage and i'll use a board to brace it in place. Used these to make a...  Read More

The product comes with the castor wheels and screws. Really easy to attach using the included adhesive pads. The mounting screws were included in the box, but the screws are also hex headed, so a socket drove them in just fine.

I hope this was helpful. Now mobile.

The seller seems to truly care about the product and customer satisfaction. Packaging is great and keeps everything separated and from getting bent or damaged. Oh by the way they’re priced right as well.

Every wheel on two sets of these casters has an injection molding void. The wheel keep locking up or something, i have to move the island in a great big circle before i can move it in the direction i want.