This DrySpec Tool Tube Kit attaches directly to any flat surface and can be used to carry a tool roll, a 30z fuel bottle, or any other gear that can fit inside of it. The DrySpec Tool Tube measures 14 inches long overall with a measurement of 12 inches from mounting foot tip to mounting foot tip. The tube body measures 12 inches from the base of the tube body to the cap with the foot at the opposite end of the cap extending 2 inches beyond the tube. The tube is 4 inches wide at it's widest point with a main body diameter of 3.5 inches. The foot at the cap end is 3 inches wide with 3 round 8mm mounting holes while the opposite foot is 2 inches wide and has 1 elongated 8mm mounting hole. The feet provide 3/4 of an inch clearance for the main tube and 1/2 inch at the tube's widest point. Mounting Kit Notes: Tool Tube Drill Bit Mounting Hardware with Sealing Washers Note: Our Tool Tube Mounting Kit can be used to mount the Tool Tube to motorcycle side racks and other offset mounting locations. Instruction Manual English PDF Instruction Manual Part Numbers: SKU: DJA.67670.100 UPC: 850003076010