Abstract: A portable chair and tray system for use in conjunction with a substantially flat surface is disclosed. The chair is a "hook-on" chair having a pair of substantially parallel elongated members, each of the members having a downwardly extending upper end portion and an upwardly extending lower end portion which are positioned to substantially oppose one another when placed on opposite sides of the surface, the portions acting in a counter-balanced fashion. Detachably coupled to the frame is a seat and an uwpardly extending back. The system is also provided with a tray having openings therein adapted to receive the upper end portions of the elongated members in a nesting position, the tray also having retaining means thereon for releasably retaining a suitable container.