Use Brownell Keel Stands in place of conventional wood blocks. Use one keel stand for each 20,000 pounds of vessel weight, spaced evenly along the keel. Always use a minimum of two keel stands. Boats should be stored on a flat, even surface. On softer surfaces, a wash plate is recommended under the base of each keel stand. Use Brownell Boat Stands to stabilize the vessel. Stackable for efficient storage Made in the U.S.A. with domestic steel.