At time of my purchase of these, the hole pattern in product pics was shown to be 1.7X2.5in on centers of slots. Slot dimensions shown as 0.3x0.4in. Actual hole pattern is 1.76X2.88in. Actual slot size is .33X.47in. This means that the 2.5in shown in pics is actually the ~minimum dimension between slots. So if you designed mating parts to that 2.5in center shown in pics, installing the fasteners is impossible. To the person that measured the parts for the product pics: Good job! You almost got it! Keep trying, one day youll finally read that tape measure correctly, and then theyll be no limit to what you cant do! Otherwise, these seem to be as advertised.

I bought them for my homemade outboard stand. The outboard is 300lbs and it maneuvered pretty well.

The work as stated. Very happy.

These casters are great under my tool box. Easy to move around the garage floor.

Would buy these casters again, but after my first order, theyre NEVER available again. And, no way to reach the seller. Also happened on the previous caster bought from Amazon. Frustrating.

Used these wheels to mount a carpentry workstation. Fit the bill perfectly. Smooth both rolling and swiveling. Easy to mount. Strong.

These are heavy duty casters. I think they will last a long time. they clamp down very easy with just a touch from my foot. the lock is short and doesnt get in the way. you my need to reach down to unlock depending on the shoes you have at the time because the lever is small

These things are great on my 4 x 12 guitar cabinets. Highly recommended.

I got these casters for a small greenhouse that I wanted to locate on my front porch, but still be able to move. I wasnt sure about the load rating, but I can tell you that these roll very easily and lock securely! I assembled the (very heavy) base and the greenhouse separately, but the greenhouse itself is very light. I built the base in the shop in the back yard, put the wheels on it, and pulled it across tall grass with a chain to the front porch. No short trip, and it rolled very easily. Im guessing the base alone probably weighs somewhere close to 200 pounds. With everything put together and stuff inside it, it rolls easily on the concrete porch. Its been a few weeks, and I see no deformation of the wheels. When locked, the casters wont swivel, and wont roll. It still moves easily when I unlock it. Im quite pleased with them!

Unfortunately the overall height of these casters is about 4.25 not the 4.00 advertised. A quarter inch makes a difference in our project, so I have to return these.