Covers up the hole in the stake pocket at the top of the bed sides. Top is made of electro-galvanized steel. Bases are made of stainless steel to help prevent rust and corrosion. Easy to install! Just paint, push in and go. Sold as a pair, two sets are required for shortbed applications and three sets are required for longbed applications. Top dimensions: 2.25-inches by 1.625-inches. Fits fleetside trucks.