1" Standoff: 4x4 post anchors raise wood posts 1" above the concrete to help prevent rot at the end of the post and improve ventilation and drainage. Extends the life of wood posts Stable and reliable: 4x4 post base anchors secure wood posts to existing concrete for decks, patios, gazebos and other top support structures Corrosion Resistant: Post bracket is made of high quality steel with galvanized coating, which makes the product less prone to rust when used outdoors and prolongs the service life of the pillar base For 4x4 Wood Post: The 4x4 post base fits standard size 4“ x 4” (actual size on the market is 3.5“ x 3.5”) posts, the slots on the bottom of the post base are designed to allow for easy positioning and alignment of the wooden post Package: Includes 6 pcs 4x4 concrete deck post anchor base (Not included screws)