Your choice of two optional styles of mounting cap are available. Option #1 is a removable cone type (picture #6) with a 3/4" hole for fitting a bolt (5/8"x2 included). Option #2 cap style (picture #7) is a flat cap, better suited for mounting a flat bottom callbox. This option allows for drilling an off set hole to aline your box to your particular application. Pictures #5 show both styles, and variations on adapting your cap, the ring is an adapter that is used on older style Fireboxes that have a threaded extended boss on the bottom.Pictures #10,11,12 show how to mount your mounting cap to your box. The pedestal is heavy approx. And can be used as freestanding/portable indoors or permanently bolted down and displayed on your patio. Understand that this is a new, reproduction item and requires minor assembly for mounting box to pole for your particular application. The additional pictures show variations on adapting your particular callbox to this pole. This is the post you've been looking for to give your gamewell that authentic period look. Local pick-up is also available. Base diameter - 12 1/2.