Flush End Post, Steel, Guard Rail Levels Single, For Use With 22DN01, 22DN02, 22DN03; 22DN04, Guard Rail Mounting Style Bolt On, Safety Yellow, Post Dimensions (W x D) 4 in x 4 in, Mounting Plate Dimensions 11 in x 11 in, Net Weight 36 lb, Includes Rubber Caps, Finish Powder Coated, Mounting Hole Dia. 7/8 in, Number of Mounting Holes 4, Post Height 21 in