Rainbow Outdoor Siena Outdoor Stackable Side Chairs | Anthracite (Set of 2)Stackable Polypropylene Patio Chairs for Dining & Poolside The Rainbow Outdoor Siena side chair pairs a anthracite woven poly wicker texture with a sturdy, stackable build, sold as a set of two. It suits dining tables, cafs, and patio seating, and the chairs nest for easy storage. Molded for outdoor life, it resists sun, rain, and fading, wipes clean in seconds, and carries a commercial grade rating for restaurants, hotels, and poolside use as readily