Features: * brand new and high quality *Made of high-quality materials, more durable *All-round stress is more stable Equipped with four knobs, so that when the outdoor umbrella is fully stressed and fixed, there will be no problems such as loosening of the gap, sliding of the umbrella pole, and tilting of the umbrella stand. Adjustable range: Φ1.12''-1.57'' *Suitable for Three Scenarios The bottom design is suitable for installation on concrete, wooden decks and lawns, and comes with all required installation accessories. *Installation Use Patio/Dock Umbrella Base Holder can also be used for flag pole mounts, light pole mounts, selfie camera mounts, shade sail pole mounts, and other types of poles suitable for both residential and commercial use *WIDE USE This umbrella base stand is perfect for decks, piers, pontoons, patios, picnic tables, and anywhere else it can be secured with the included lag screws. *Rust-resistant material This deck mount umbrella stand is made of heavy-duty metal base, which is durable. stainless Package Contents: 1 set Umbrella stand Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.