Blem Description: Blemished products contain cosmetic defects that prevent them from being sold as new but are perfectly functional and carry the full manufacturer’s warranty. Out of the original box. All blem/demo sales are final, no returns and no exchanges please.The Fly High Pro X Series Rear Seat Sac is a smaller version of the Fly High Fat Seat minus the extended arms on each side. It has a lower profile but adds a lot of weight to the rear of the boat. The rear seat sac is bullet proof and perfectly fine to sit on.The Rear Seat Sac is designed to replace the rear seat cushion in direct drive wakeboard boats with 580lbs. of ballast. The Rear Seat bag is a similar shape to the Fly High Tube Sac and sometimes is a better fit in larger ski locker compartments in both inboard and I/O boats. Remember to balance the weighting of any boat and with this much weight toward the stern you will need to add weight to the middle or bow of the boat.