Product OverviewCommercial steel post designed to support heavy-duty work: fences (< 84 in), post boxes, signs. A solution which is fast, efficient and economical, which does not require digging or pouring concrete. Easy to install: Drive in the ground using a drive block and attach a square post to it. Its blades anchor it solidly. It does not require maintenance due to its baked powder coating finish. To be used with 4 in x 4 in square posts. Offers long term protection since the wooden post is above ground level.