Strong and sturdy, these adjustable stands provide dependable support for boats stored on land.Keel stands compensate for uneven ground and eliminate the need for wood blocking under a boats keel when setting a boat up for work in a yard. They adjust to the exact height needed and are a lot easier than trial and error shimming. Stands are welded steel with solid steel, ACME-threaded center adjustment rod. Stackable Keel Stand saves valuable yard space.Key FeaturesQuickly adjust for uneven groundFaster and easier to deploy compared to wood blocks10,000lb. capacitySuperior welded construction with solid-steel, Acme-threaded adjustable rodSizes to fit virtually any boat; made in USAStackable for efficient storageMinimum height of 16"Maximum height of 24"