Thule Hullivator Rack.  Very good condtion.

Lift-assist kayak rack designed to easily load and unload on your own
Gas-assist struts lift and lower 40 lbs of the kayak’s weight
Load and unload your kayak at waist height thanks to double extending arms
8 touch points of padded support for maximum protection
Corrosion-resistant kayak cradles expand to fit wide kayaks
Built to last with aluminum, double coated steel construction