Common deck-mounted flagpole base, which fits 1 1/8-1 15/16" diameter poles, both to anchor the parasol pole stably to the concrete floor and to mount the flagpole.
Adjustable knob
Adjustable knob for 1.1-1.9 "sun umbrella. Put the parasol in at the top and tighten the two holding knobs on the base so that the shaft doesn't wobble, even on a windy day.
Black powder coating
Full coverage black powder paint waterproof sunscreen suitable for indoor and outdoor to avoid rust. The base has four stainless steel screws that are threaded through four round holes in the base and then screwed into the wooden deck or nailed into concrete.
Unsealed bottom
If outdoor use encounters rain, water will also enter from the top and drain from the bottom so that it will not be corroded by the accumulation of water, thus extending the life of the base.The unsealed bottom does not collect water and the sun umbrella extends below the deck.