This item includes the telescoping center post from the Ultimate Wondershade from Maranda Enterprises, LLC. The center post inserts into the base, allowing the base to be adjustable in height via the quick release cam handle. At the bottom end of the center post is a permanently affixed sand screw. Near the top of the center post is a hole through which the twist handle can be inserted to drive the post into the sand for beach use. At the very top of the center post is a quick release cam handle which allows the umbrella top to be adjusted in height.