PREFERRED 4″ Post Sleeve kit is created for you to cover a 4″ x 4″ wood post to finish off the deck foundation. There are 4 color options with a textured finish will give you a beautiful finish to your project while increasing durability. The kit includes a 4″ Pyramid Post Cap and the 1 piece base trim. The only Post Cap that fits the 4″ Post sleeve is the 4″ Pyramid Post Cap.