The two cheek blocks on the top right are tied with A BLACK NYLON LINE to a plastic mold that hangs from the roof of the hull- they are different lengths as shown in the drawing. The closest cheek block to the bow on the left is tied on to a similar mold with a nylon line. The check block that the kickstand runs through is screwed to the hull. All the other remaining cheek blocks are screwed down to the hull. The cheek block should not be touching the bottom of the hull, the line should be too short.