The 36 in. – 6 in. x 6 in. OZ-Post Anchor T6-850 (5-1/2″ x 5-1/2″) is the only post anchors industry tested to be the very best. OZCO’s OZ-Post post anchors are a better option to post hole diggers and pouring concrete footings, providing superior support for your outdoor living spaces and future project. OZ-Post products anchor your wood post with no digging, concrete or mess while keeping the bottom of posts safe from water and rot.