Boat part number 7500479 is a new jump seat cushion set from G3 Boats, part number unavailable . These cushions are constructed out of a high density foam covered in a gray and black vinyl with a black starboard backing. When put together it measures approximately 18" W x 17" D x 12" H overall. Specifications: Boat Manufacturer: G3 Boats Part Number: Unavailable Part Manufacturer: Unavailable Color: Gray / Black Material: Vinyl / Foam / Starboard Overall Dimensions: 18" W x 17" D x 12" H Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate. Hardware and instruction / installation manual not included.