The Bigfoot Systems tube form is a durable water-resistant choice that replaces the standard cardboard construction tube. Molded from partially recycled high density polyethylene, the 4-foot long footing tubes can be backfilled and left in the ground before pouring concrete and won't break down in the rain, snow or by ground water. A tapered design with a uniform 12-inch diameter helps prevent uplifting from frost heaves or high velocity winds. They can be easily cut with standard power tools and come with a safety top with a handle that makes it easy to move and position them during construction. Designed to be used with the BF28 or BF36 forms, they can also be used as standalone footing tubes.