Lots of Polaris Ranger customers already have a hard roof and windshield, but after they've had the vehicle for a while they realize they want a full cab.These doors will work with any hard roof, any windshield, and any back panelNo other set of doors has this flexibilityMade of .75" diameter steel tubingCovered with heavy duty water and UV resistant fabric Tensioning straps keep the door frames tight and prevent flappingFits 2009-2014 Full Size Polaris Rangers (except for the 2013 XP900, and Pro Fit roll cages) For more information on this product check out this video.