RAM BOX Revolver X2 BAKFLIP MX4 Tonneau Cover. FITS: the Ram Truck with RamBox (2009-2019). ON a RAM 5.7 foot BOX Part or SKU # 39207RB Solid, secure rolls up out of the way, better than the flip style. I purchased this for my 2014 Dodge Ram, used it for 2 months and sold the truck for a 1-ton full size box. Its in MINT condition. Its fully lockable and very tough. Photos are generic ones, I never took a pic of my installation.