FEATURES 14-gauge stainless steel Weather-resistant: Coated with weather-resistant materials Laser-cut, bent, and welded Adjustable design Fits 1.5-2 inch table/offset umbrellas Package Contents: 1 x Top Base 1 x Holder Base 4 x Knob Screw 8 x Wood Screw 【ADJUSTABLE DESIGN】The heavy-duty umbrella holder is suitable for 1.5-2 inch table/offset umbrella poles. By tightening the 4 fixed knobs on the umbrella holder, the hole diameter is adjusted. Can be firmly attached to square balcony railings, sofas, etc. 【WINDPROOF UMBRELLA HOLDER】The umbrella stands are made of 14GA stainless steel, providing better stability, and the umbrella holder has a solid full weld line, which is not easy to break. Thus, your umbrella can stand stably in the wind without moving or twisting. 【STAINLESS STEEL MATERIAL】Made of high-quality 304 stainless steel material with a black coated surface, making the umbrella holder bracket corrosion-resistant and rust-proof, and providing the umbrella bracket with exceptional stability and durability. 【EASY INSTALLATION】The umbrella clamp can be installed quickly. Comes with 8 wood screws that can firmly attach the base to the wooden post. 【SPACE-SAVING】This outdoor umbrella stand is a must-have bracket for use on deck railings. Perfect for use in any corner or on any surface such as decks, bleachers, tailgates, boats, fences, etc.