Thule set of: . two coated square bars 50" long which are supported by mounting brackets, one slides the bars through the mounting brackets to the position that fits the particular car roof size . 4 locking mounting brackets that fit onto the roof gutter, key included, . 4 pairs of saddles, and . straps for tying down one or two boats. The 4 pairs of saddles enable one to carry two boats, or one can use two pairs for a single boat with room on the bars for something else like a bike. used but in good condition