These are excellent sturdy, smooth, soft, non-marring castors. Rolls well over hardwood floors. I would roll the dice and buy then again for any other project.

Locking is effective, but a bit hard to get to the lever on the casters so i have to use my hand to snap in place.

These are inexpensive, good quality, and screws included. Easy to install. Comes with all 4 caster, hardware and a screwdriver.

Stable and secure spinning bookcase that can be easily repositioned. No noise when moving the large and bulky piece. It gets moved around my small wood shop every day on a cement floor with all kinds of sawdust and debris.

These casters look great. Really nice and solid. Would have no hesitation ordering a set of these for similar uses.

Developed flat spots within a week.

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.