Inline Post, Steel, Guard Rail Levels Single, For Use With MPBPR Rails, Guard Rail Mounting Style Lift Out, Safety Yellow, Post Dimensions (W x D) 3 in x 3 in, Mounting Plate Dimensions 8 in x 8 in, Net Weight 15 lb, Includes (2) Post Saddles, Finish Powder Coated, Mounting Hole Dia. 9/16 in, Number of Mounting Holes 4, Post Height 20 1/2 in