These are possibly the largest caster wheels i've ever seen. They are durable, easy to install, and work great! The only downside is that there is no locking mechanism, but i should have taken that into consideration on purchase.

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.