Look no further for an abundance of options for vinyl post sleeves for any Durables rail system. The 4 and 5 options slide easily over a 4x4 wood post or a structural post insert to form a solid anchor, and 6 sleeves can be used with 6x6 wood posts prior to railing installation. Post sleeves are available in white, tan, and khaki and you can choose from a variety of heights to use as-is, or trim into smaller pieces for a cost-effective installation.