Wake watchers mooring system--Special $389.99 in Brantford, Ontario for sale

Automatically positions boat away from dock -Pay CASH we eat the HST
WAKE WATCHERS MOORING SYSTEM
Features:
Patented, unique 2 step mooring system: 2 point hookup to boat.
For boats up to 3500 lbs. and adjustable tension for smaller boats and personal watercraft.
Automatically positions boat away from dock to prevent damage from wind and water action.
Allows free movement of boat; Resists vertical, horizontal and lateral motion.
Cushions the boat from wave action. Reduces line stress
between dock and boat
No line clutter on the dock.
Corrosion and weather resistant.
Engineered for safety and convenience.
Warranty: 5 years.
To remove from dock, unfasten 4 nuts and bolts.
Measurements:
Base post 14" high; Base plate 6" x 6"; Steel tubing 1 1/2" square: E-coated than a baked white powder coat finish.
Arm length from pivot point on top of base post:
A - arm over dock 14" B - arm over water 40"
Arm when vertical (at rest): The hanging rope is about 20" out from the base post.
Tip of arm is 56" high.
When horizontal (attached to boat): The hanging line is about 39" out from post. Total length of hanging rope is 88".
Important: When the arm is vertical it can be swung sideways and will remain parallel to the dock edge so no part is extending over the water or over the dock