Furnish your classroom, training room and adult education facilities with seating designed for comfort during educational courses and workshops. This well constructed, stackable school chair provides an unparalleled level of durability and value to exceed your classroom seating needs. The seat shell is designed to promote student seating comfort and correct seating posture for enhanced learning.Advantage Black Student Stack School Chair, 18" With an open-back for airflow this classic student stack chair will keep students comfortable to focus on the educator.