Modular lounge seating ready to ship in 48 hours. Sienna is comfortable, functional and offers a wide range of options to create custom solutions. This lounge seating system is metal frame construction with injection molded foam surrounding the frame. It is completely modular in that each component is cleverly engineered to fit together easily. This means replacement of components after it is in service is possible. Sienna has two different arm styles to choose from both of which can accommodate a tablet arm. Duo upholstery options are also available.