Fat Sac V-Drive Wakesurf Wakeboard Boat Floor Ballast Bag Set 42 x 16 x 16 - Two 400 lbs Each - 800 Total lbs - Extra Valve Included - Gray, Black, Blue, Red, White, Camouflage Valmex Made in USA Floor Fat Sac Ballast bag measures 42 L x 16 W x 16 H Two sacs weighing 400 lbs each Now made with an extra 4th valve at the bottom end Gray Weight distribution balancing