Diamondback features a number of different cover options. The 2 panel front to back hard covers are the SE and HD. The 180 opens side to side while the 270 opens from the side and back. Please call or email us for a quote at this time, we are in the process of updating all our Diamondback accessories and options as they change constantly. All Diamondback Accessories ship free when purchased with any regular cover package. Call or email to discuss the right Diamondback cover for your application.