This three-seater sofa features a classic 8.7-inch thick elongated seat cushion, with three omnidirectional casters at the front (allowing for 360° flexible turning and smooth movement), and three solid wood legs at the rear for stable support, creating a unique balance of "moving in the front and stationary in the back." The square armrests, with their clean, modern geometric lines, contrast with the soft backrest, while two removable, double-sided backrest cushions (usable on both sides) and the included lumbar support provide flexible ergonomic support—the backrest curve conforms to the spine, the lumbar support precisely supports the lower back, and the 900lbs high load-bearing capacity and high-density rebound foam ensure a stable and durable seating experience. The velvet cover is available in four modern colors: white, red, green, and blue. All cushion covers are equipped with smooth zippers for easy removal and washing, giving this sofa both the stability of a classic structure and the convenience and comfort of contemporary living.