<p>The Undercover Antirocker wheel is extremely stylish and strong in addition to having a dual colour pour and has a 47mm diameter, a 65D (rockhard) hardness rating, and a flat profile. </p> <p>This antirocker wheel doesn't require a core because of its exceptional hardness, assuring optimum durability. </p> <p>Even with a 60mm wheel arrangement, its size eliminates the possibility of wheel biting. </p> <p>For any ambitious street skater, a must-have!</p>