RototraX are traction boards compatible with our RotopaX hardware. With the same mounting pattern as our 4 gallon (two 2 gallon) container, RototraX will mount in all the places our fuel container can. RototraX are manufactured with the same heavy-duty plastic and manufacturing technology as RotopaX. With long-lasting durability and fair pricing, RototraX are an excellent upgrade to your off-road or overland vehicle. Various colors coming soon! 100% made in the USA! To stack Traction Boards on top of RotopaX Containers, use our 1.75 Gallon extension (RX-1.75EXT). To stack 4 boards, use our 1.75 Gallon Extension (RX-1.75EXT). To stack 4 boards, you will need a specific set of hardware. Please email our support team to receive the product. Comes in SETS OF TWO Traction Boards. The mounting holes line up with our 4 Gallon RotopaX container. The mounting holes will NOT line up with the 4.5 Gallon FuelpaX. ONLY LOX and DLX Pack Mounts will work with RototraX. Dimensions: 45" X 13". Mounting holes: 17.25" center to center. Weight: 11.5 pounds (per set). Blue and OD Green colors coming soon. Currently working on weight ratings, coming soon. Full 1-year warranty on physically broken boards; no warranty for melted or warped boards.