Tube Fat Sac Ballast Bag - 370lbs - BlackThanks to its long and narrow shape, the FatSac Tube Sac is perfect for adding 370lbs of hidden ballast.The FatSac Tube Sac is the perfect shape for ski locker found in the floor of most boat. It's longer and narrow profile also make it incredibly versatile for use in other areas of the boat, such as the bow walk-way, or in storage compartments and under seats.  There's a reason this is one of our most popular bags; it's incredibly versatile, and will fit in a number of locations depending on where you need ballast.Whether you need additional weight up front for wakeboarding or if you need additional ballast under seats in the midship for surfing, the Tube Sac is the perfect size to fit in most ski and wakeboard boats.Features:Tube Sac62 x 16 x 10 inchesIn the Box:Ballast BagThree Valves/Caps (W731 x 1, W749 x 1 and W730 x 1)*Sold as an Individual WARNING: This product can expose you to chemicals including Diisononyl Phthalate (DINP) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.