Cockpit bolsters are held in position by clips fastened to the boat. The bolsters feature mounting brackets on the back that allow them to hang on the clips. In addition, the bottom edges of the bolsters are secured to the boat with screws. Remove the screws by inserting a screwdriver into holes along the bottom edge of the bolster. You may have to lie down on the deck to locate the screw access holes. After removing the screws, work the bolsters up and off of the mounting brackets.