Check the listing for details. Post Cap Pressed Dome Steel Metal Square for Gate Fences | Multiple Sizes. Condition: New. Listed at 2.30 USD. This listing is for steel post caps used on gates and fences.Square post caps fit on top of square posts usually to prevent water from corroding the inside post while still being decorative. Ideal to complete a variety of fencing projects in extreme weather conditions or with extreme architectural requirements.The sizes listed are the size for your posts. If your post measures 1-1/4 you may order the 1-1/4 for a perfect fit.19 gauge thickness for 1-1/2, 1-1/4.18 gauge thickness for 2, 3, and 4 inches.Paint after installing to match the post and prevent from rustingMaintenance Free and is able to weather all seasonsOrders that weight more than a pound will be upgraded to USPS Priority.No welding necessary - cap fits tight you may apply exterior caulk to the underside of the post cap for a tighter fit.Shipping is charged only once per order