Your review: I have heavy cabinets and used the double roller wheels available by the cabinet retail store. Similar to office chair wheels but bigger. The wheel separated from the axle when maneuvering the cabinets, not a disaster but now I need better wheels. These wheels are the answer. Excellent construction in every aspect. Strength, looks, and most important the confidence gained knowing the equipment that is riding on these is stable.
Pros: Roll very easy on carpet and allow a bit of aggressive maneuvering with the confidence a wheel is not going to fail.
Cons: Might be operator error, but the brake when applied puts dimples in the rubber wheels. You could consider it a positive locking function. I consider it damage, when compared to the price.