Quikrete QUIK-TUBE® Rigid Fiber 8 in. x 4 ft. Concrete Form Tube is designed to simplify your construction projects by eliminating the need for traditional wood forms. These ridged fiber building forms are lightweight yet durable, making them for a variety of applications such as home or deck pilings, goal posts, fence posts, mailboxes, lamps, and footings. I for use below grade and up to 3 feet above grade, QUIK-TUBES® are engineered with multiple layers of high-quality fiber laminated with an adhesive and coated with a special moisture-resistant finish that ensures even curing and long-lasting performance. Model Number: 692201