Twenty-five and a half inches square with the cushion at 16 inches, matched to the low seat height of the chairs it serves. Pushed against the highback or the club chair it makes the pair full-length; left loose it works as event seating or a tray stand. Grey 01 Durarope over black aluminum, top specified from contract textiles. Twenty-seven pounds. The usual spec is one per lounge chair, and they earn more use per square foot than almost anything else on a deck.