Sonic is ideal for meeting rooms, office guest seating, food facilities, lecture halls, and just about anywhere. The series is offered with or without arms, with or without casters, polypropylene, upholstered or mesh back, as a task chair, as a counter height stool, with left or right tablet arms and in a beam seating configuration. The molded seat and back offer exceptional durability and ease of cleaning, while the breathable mesh back provides additional flexibility and comfort. Choose from all plastic, plastic back with upholstered seat or fully upholstered models. Polypropylene seat and backs are available in a wide selection of designer colors. Mesh backs are available in black only. Frames are available in chrome, black or tungsten. Tablet arm is extremely durable with a solid steel chrome frame and tough high pressure laminate surface. The core is hardwood veneer plywood with a clear lacquered edge. Overall tablet size is 18.5"D x 18.5"W. Can be ordered in a left hand or right hand arm (seated). Not available on stools. Tablet arm flips up to allow ease of entry/exit. Tablet also slides forward and back to accommodate any user comfortably. Tablet models do not stack.