Flag Pole Sleeve with 2 1/16' inner diameter fits 20/25/30 ft in-ground flag poles, offering a firm foundation for residential and commercial flagpoles to ensure stability Constructed from sturdy PVC material, features resistance to wear-and-tear and water, and does not rust for long-lasting use Dig a hole for base, then insert sleeve and flagpole, and fill in the hole with sand or concrete Fits flagpoles with a diameter less than 2 1/16' Overall Dimension(Dia.xL) 19 11/16' x 2 3/16' (5.6 x 50 cm)