Garden Winds Universal Sling Swing Back Support Garden winds ultra grade fabric: 525 Denier polyester fabric color: Beige whisper fabric: UPF 50+, water resistant, cpai-84 fire retardant Replacement sling material only Swing structure, replacement canopy and replacement swing cushions are not included Replacement back support only Metal structure and seat cushions not included Each universal sling swing back support goes over the seating and around the backside to re-attach to itself via four nylon straps and buckles Two universal sling swing back supports will accommodate patio swings up to 65 inches long