Effective, retractable, and easy to install and move fencing system that utilizes two clear lines mounted 12" and 24" off the ground, stretching tight along the edge of lakes and ponds. Each system will cover 250 ft. Easily retractable and spring loaded to keep tension on the line at all times. Barely noticeable to humans, which makes it aesthetically pleasant. Features a rewind system, one post and two receptacles. Additional posts with receptacles are available and must be ordered separately.