An iconic original the instantly recognizable 9000 Series Chair is a popular fixture in classrooms across the nation and around the world. The 9000 Series 18" Classroom Chair with Padded Upholstered Seat is a comfortable, lightweight chair with a foam-padded seat and back for extra comfort. Its strong, tubular steel frame makes this chair a hardworking classroom favorite. The four dual-wheel swivel casters can be used on both carpeted and non-carpeted surfaces. The 18" seat height is an ideal size for 5th Grade - Adult.