Base for Flagpole & Parasol: Universal Deck Mount Flagpole Base, fits pole with diameter of 2 3/8' (6 cm); Includes 1 set of plastic sleeves for making it fit for thinner poles of 1 5/16', 1 5/8' to Easy & Sturdy Installation: 4 Predrilled holes on the base for simple installation Durable in Use: Heavy duty metal body with baking varnish; Rubber ring on the joint; Tightening screw knob provides a smooth, wobble-free adjustment for better stability Classic Appearance: Baking varnished surface brings smooth texture to the surface Wide Application: An excellent stand to hold flag pole, for expressing your patriotic feelings, sharing your support for political candidate