Thule Hyper XL rooftop cargo box (model 612). This was Thule's top of the line box when it was sold. 17 cubic feet, about 97 x 37 x 18 inches. Opens from either side of the car. Fits up to 7 pairs of skis or 5 snowboards, or camping gear and luggage for road trips.
Honest condition: scuffs on the lid from normal use. The lid lifters no longer hold the lid open on their own. The replacement part is Thule TH14936, about $50 each, and it is an easy swap. Comes with a key.
Pickup near Silverbell and Coachline in Marana. Cash or Zelle.