Umbrella-Lok is the first locking system for docks and decks that's effective and easy to use. this innovation clamps down a umbrella stand in a matter of seconds to a dock or deck.You simply slip the blade through a space in your base and the gap between the boards turn it 90 degrees and tighten the knob. It is bundled with a attractive 25 pound cast iron base with a super heavy duty receiver post to handle the wind loads. You can watch the Umbrella-Lok in action in heavy winds at https:youtu.be/OBG62djmglc
