Bearings have been removed and discarded. Wheels have been cleaned with warm water only. I used these for roller derby between 2005 and 2007. The skates then sat in storage indoors away from extreme temperatures, moisture and sunlight.If you need additional photos or have any questions, please reach out! The item "Hyper Witch Doctor Quad Roller Skate Speed Jam Derby Wheels Used Set of 8" is in sale since Wednesday, September 11, 2019. This item is in the category "Sporting Goods\Outdoor Sports\Inline & Roller Skating\Wheels". The seller is "leatherseams" and is located in Baltimore, Maryland. This item can be shipped to United States.