This is a set of four caster wheels with stoppers from TRUSCO. I am selling these because the size didn't fit, even though I purchased them new. I took out one bag to try them, but I haven't actually used them, so they are in like-new condition. The third image shows where I opened the bag, put the casters back in, and resealed it. I have put them back in the original bag and resealed it. Please check the size before purchasing.