UV-resistant, marine-grade vinyl standard and innovative design in every chair package, meeting and exceeding H-31 specifications. No Cushions Set or Mounting Plate included. Safe, Secure Seating for the Offshore Boater Replacement Parts are also available: -ST2071-D: White 2071 Chair Only -CU1071-2D: White 2071 Cushion Set Product Dimension: 21.45D x 20.50W x 19.32H