Review on Versatile Combo Caster Swivel Wheels: Ideal Material Handling Solution with Durable Screws by Brian Whitmore

I was very pleased to see the quality of these casters/wheels. I ordered them for a material truck I just built. (see photos) They fit my application perfectly. There were four double-locking casters that I used for the four outside corners and four non-locking casters for the inside. If you are unfamiliar with "dual" locking casters/wheels, this means they will not roll or spin when locked. Double blocking is by far the best. They have heavy steel mounting flanges, roll easily, hold a lot of weight and leave no marks on the floor. I particularly liked that the kit included screws and washers for attachment. This is a great set of wheels for the price even if you don't need all 8 wheels for your project.