Tips: For 4"x4" post. Muzata one-piece post base cover is designed for standard nominal 4"x4" posts, ACTUAL 3.75"x3.75" post. Please comfirm your post size before purchase. Attention: 4Packs One-Piece Post Skirt has already upgraded version, so this batch can fit for Muzata Post Foot Base WT08, and is also compatible with other wood post accessories Post Decoration: The one-piece post skirt will prevent your post from decay while decorating your deck, making it stand out in your neighborhood. It is applicable to fence post, deck post, wood lamp post, mailbox posts, etc Weather Protection: It’s made of quality galvanized steel with great rust resistance and will work for a long lifetime. It is ideal for both indoor and outdoor applications, even by the seaside Easy to Install: The one-piece design is easy to install and beginner-friendly. Please note that the post base should be installed BEFORE the installation of other infillings. Wood Railing System: You might need several wood railing kits to build a complete frame to enrich your deck railing system. Please search Muzata WT01 for 36" round aluminum balusters, WT02 for 26" round aluminum balusters, WT03 for s-shaped scroll balusters, WT04 for single-basket balusters, WT05 for double-basket balusters, WT06 for aluminum post caps, WT08 for deck railing connector, WT10 for flat square baluster shoes, WT11 for deck railing bracket, WT24 for split style post skirt Muzata 10Pack Post Base Cover One-Piece Post Skirt Galvanized Steel Blackfor 4"×4" (Actual: 3.75"x3.75") Wood Fence Deck Cable Railing Baluster. The one-piece post skirt will prevent your post from decay while decorating your deck, making it stand out in your neighborhood. It is applicable to fence post, deck post, wood lamp post, mailbox posts, etc