Mini 4WD 520 Bearing Polishing Compound WRC (Wide Range Compound) Capacity: 10g Includes original logo sticker This polishing compound is a blend specifically designed for polishing 520 bearings used in Mini 4WD rollers, etc. It was developed and formulated based on unique criteria from several polishing compounds originally developed and sold for other purposes, achieving both smooth roller rotation and ease of use. Advantages: The polishing compound dissolves in water, allowing for dilution and adjustment of polishing speed. The polishing compound dissolves in water, making it easy to clean. Prevents roller detachment due to excessive pressure removal. Bearings that would otherwise be discarded can sometimes be restored through polishing. Disadvantages: Excessive polishing can lead to bearing damage. Bearings after polishing lack oil, requiring more frequent lubrication. Discounts are not available. The container in the first image will be sent in an envelope. Please contact us before purchasing multiple items. Information about WRC is available on "X". If you are interested, please search for "I want rollers that spin."