The two-piece vinyl post skirt is available in either 4" x 4" or 5" x 5" sizes. This PVC skirt height is 2.460" and snaps together at the bottom of the post and sits where the post meets the ground, deck, or step to give a beautiful finished look. The 2-piece post skirt can be put on after installation or added to an already installed post since it does not have to "slide over" an existing post.