The Launch Pad 800lb ballast bag is very versatile. Either use it as a wakesurf bag to make a mammoth wake in a V drive boat or place it in the center of a inboard/outboard boat for a huge wakeboard wake. 24"H x 24"W x 50"L * Heavy Duty 30 gauge PVC. Strong, electronically welded seams. * Three Launch Pad Link valves for clean and easy filling and draining of your ballast bag. * One traditional valve for compatibility with older pumps. * Weight label around valve for easy size identification.