In addition to durability, the plastic chairs were considered another kind of alternative to the molded plywood chairs on which they were based. All of these came with a contour molding seat and back pad, providing a posture-supporting chair. They had both height and depth adjustments to fit individual posture needs. Multiple upholstery options were offered. The bases were polished aluminum. The back brace, which provided a flexible connection between the two pieces of the chair, was chrome plated. All of these two-piece plastic chair models were discontinued in 1981.