Norwood Commercial Furniture's Assorted Color Indoor/Outdoor Stacking Stool adds colorful, versatile seating to any media center, library or common area. These stools are stackable and feature a lightweight polypropylene construction that makes these stools easy to move around your facility. A UV-protectant treatment protects against fading, making these seats suitable for use in an outdoor classroom or play area. This set of four includes one blue, one red, one purple and one green stool.