This BP8540 outdoor sectional sofa set is crafted from a sturdy aluminum frame and durable wood-plastic composite (WPC) accents. The aluminum frame offers exceptional rust resistance, lightweight stability, and long-lasting durability, while the WPC side tables and coffee table top mimic natural wood grain with superior weather and water resistance. The thick, water-resistant cushions provide plush comfort, making this modular set ideal for patios, balconies, or gardens, blending modern minimalist design with versatile outdoor functionality.