7-1/8 in. actual opening for 7 in. post size Made in the USA, Copper & Western Red Cedar Real Copper, Add decoration while protecting your posts end grain from the elements Molding is stapled & glued to the top, Will Patina over time Can apply exterior polyurethane to protect the copper finish, Beautify your property with full metal decorative post caps! Nantucket Post Cap makes the best post caps in the business. All post caps are made with the highest quality material and crafted by experienced millers. These “REAL” Copper metal post points will turn to a rich Patina finish over time. All post caps are made with the highest quality material.