The versatile design of the Twin 46 Flip-Up Seat offers lots of seating possibilities. This comfortable seat has a flip-up bolster for use in a leaning or standing position. Flip the chair back and use it in the aft position. Constructed with a durable plastic frame, high-density foam cushions, and marine-grade vinyl. Overall seat: 23"H x 23"W x 24"D (18.5"D with bolster up). 5-year frame warranty. 1-year upholstery warranty.