STEALTHO Office Chair Caster Wheels (Set of 5)

I bought these used, but they raised the seat higher than I expected, so I stopped using them.
When I purchased them, they were not moving smoothly, so I cleaned them with parts cleaner and improved their lubrication performance with Dry Fast Lube.

Below is the quoted product description:
STEALTHO Office Chair Caster Wheels (Set of 5) - Won't Scratch Floors - Rolls Smoothly Over Cables - Silent - No Chair Mat Needed - Blue Polyurethane - Universal Stem Approx. 11mm

US Utility Patent Pending: These are innovative wheels from STEALTHO, convenient for moving furniture. They were a huge hit on the US crowdfunding site Kickstarter, exceeding 920% funding, and feature a sophisticated design.

No Chair Mat Needed - Compatible with Various Floor Types: They can be safely used on all materials such as hardwood, parquet, laminate, linoleum, tile, and carpet, making them suitable for any office environment.

Smooth and Silent Barrier-Free Rolling: Made with elastic polyurethane. They roll smoothly and quietly. They glide smoothly even on hardwood floors.

Stem Design and High Durability ABEC9 Bearings: Robust construction and excellent durability.