The Wicked ABEC 9 bearings are the highest rated in the ABEC collection. It´s one of the best multi-purpose bearings on the market. The ABEC 9 rating stands for the lowest manufacturing tolerances, which is a quality feature for fast spinning and long-lasting bearings. This quality bearing is made of high-quality chrome steel featuring a nylon cage and is lubricated with Kyodo grease. BE WICKED