Mounting brackets can be moved to any of 7 positions (at 3/4" increments) that let users personalize them for comfort and riding preference When utilized as a passenger board they can provide up to 4-1/2" more legroom over stock Their secondary design feature allow the boards to be angled to multiple positions, relieving stress on the back of the calves of the passenger, while giving them more control of their body position during cornering The bottom of the Shortboards are beautifully chromed and look great when folded up and not in use. Surface area is 8-1/2" long x 3-1/2" wide Body control: Additional body control is provided by board's design, improving user confidence Fold up: The boards fold up when not in use, adding an additional splash of brilliant chrome Rider or Passenger: Usage depends on mount kit Driver floorboard brackets BA-7062-00, ZZ26666, ZZ55406, ZZ55426, ZZ55635, ZZ55795 (sold separately) Passenger Floorboard brackets ZZ53727, ZZ53815, ZZ55404, ZZ55410, ZZ55412, ZZ55434, ZZ55438 (sold separately)