The Wizard Progressive Rocker PR Frames are designed for more artistic skating styles. They use five smaller wheels on a 4-position rocker to skate low for control and shorter turning radius when compared to larger wheels.
The Wizard Advanced Rocker ADV Frames are designed to provide an extended range of balance for advanced progressive rocker (artistic) skaters. Large outer wheels are combined with 3 smaller inner ones to maintain a low center of gravity for control.