Abstract: The present invention provides a protector assembly or fence type structure that is easily installed along the sides of a dock where water craft are docked or attempting to become docked. The fence type structure protects the water craft as well as the dock from being damaged. The invention includes a frame with spaced apart vertical members supporting a horizontal array of vertically supported tubular roller members which rotate when contact is made with a water craft as it approaches the dock. The fence type structure is attached by a bracket to a top side area of the dock so that it hangs vertically and extends to a location near the surface of the water. The fence type structure can be rotated about the top bracket to a position up and out of the water for cleaning and repairing, as well as for removing debris which may have been trapped by the dock structure and the fence type structure of this invention.