www.decksdirect.com/pyramid-slip-over-post-cap.html
In this new line of Hatteras Wood Post Caps from Deckorators, the pyramid post cap tops your deck post with low-rise distinction. Made of solid cedar or pressure-treated pine material, Hatteras Wood Post Caps are ready to be treated with your choice of wood oil. Note: post caps must be treated, or cracking/splitting can occur. Oil should be used on all surfaces of the cap, inside and out. The post cap installs easily with silicone adhesive.