With its unbeatable design and heavy-duty construction, the Tempress High-Back All-Weather Boat Seat might just outlast your boat. Corrosion-proof polypropylene seat shells come together with heavy-duty stainless steel rivets for maximum durability. The double-contoured seat pan eliminates pressure points, and high-density, custom-fitted foam padding provides all-day comfort. Stylish 30 oz., heavy-duty, marine-grade UV-resistant vinyl upholstery increases appeal and durability. Includes 1/4"-20 T-nuts to mount to any standard marine swivel, slide, or seat spider (not included). Corrosion-proof polypropylene seat shell Heavy-duty stainless steel rivets Double-contoured seat pan High-density, custom-fitted foam padding 30 oz. marine-grade UV-resistant vinyl upholsteryIMPORTANT: Tempress Boat Seat Manual