Review on Swivel Caster Wheels Locking Polyurethane Hardware by Brian Foster

I had a competitor's 4 inch casters (HF) on a workbench, 2 fixed and 2 swivel but no locking mechanism. I only needed 2 locking casters but it's almost cheaper to buy these 4 so I did. These wheels are much better locks. Easy to unlock, they are exactly the same height as other brands and they fit the same hole pattern (bonus). They seem durable and very quiet, I will buy them again when I need more IF they last and I expect they will. They show an exposed bearing and shell. Eventually, this will be your first area of rusting and you will lose the ability to rotate. They are not stainless steel or zinc plated.