Dublin aluminum fence posts will come with 4 pre-routed holes for 4 rail spear top puppy picket aluminum fence style. Post Descriptions: Line Post - Used to join rails and sections of fence together in a straight run. Corner Post - Have pre-routed holes on adjacent sides and are used to make right angles. End Post - Have pre-routed holes on only one side and are used as starting and stopping points. Blank Post - Have no pre-routed holes and can be routed by customer for custom jobs. "T" Post - Have pre-routed holes on three sides for perpendicular fence lines. Materials Specifications 6063-T5 Aluminum 2"x 2" Square .062" Thickness on Line, End, Corner, and "T" Posts TGIC Polyester Powder Coating Hardened 410 Stainless Steel Screws w/ Cr6 Plating & Colored Heads Standard Flat Top Post Cap Included (Color Will Match Post)