The Powell Black Light Skull & Sword Wheels have a lot to offer. Made with the Powell Stree Formula, you get a high quality urethane specifically formulated, a major resistance to flat spots, higher rebound for a quick response and fast roll, a longer last and better performance. Good enough? We thought so. The Light & Skull's are made with street skating in mind. SF Pro. Made locally, here in the U.S. 55mm x 32mm. Sport Powell Peralta logo at front with skull and sword graphic in multitude of colors over black.