The umbrella stand outdoor base can help you hold your umbrella stably, suitable for swimming pools, coffee shops, restaurants, and other occasions. The umbrella base will be one of your great umbrella replacement parts. 【Quality Materials】This umbrella holder made of heavy duty Q235B carbon steel,strong and durable. The surface is treated with black powder coating, suitable for long-term use,ensuring support up to 50lbs. 【Suitable for different umbrella poles】Umbrella holder suitable for 1.25-1.9 inch umbrella,providing flexibility for your outdoor setup.There are 2 adjustable knobs designed on the umbrella stands, which can fix the umbrella and prevent the umbrella from shaking or loosening. 【Wide Applications】The umbrella replacement parts can help you hold your umbrella stably, parasols, flagpoles, wind poles, suitable for swimming pools, coffee shops, restaurants, courtyard and other occasions. 【Easy to install】The umbrella bracket can be installed quickly, you just need to determine the mounting location and mark the mounting holes, then drill the holes with a drill bit and fasten the umbrella bracket with screws, you can install it directly on the concrete floor or wooden deck. 【Package Includes】umbrella Stand Tube x1, 1-1/4"(32mm) PVC pipe sleeve x1, 1-1/2"(38mm) PVC pipe sleeve x1,umbrella tube Secure the knob x2,expansion bolts x4, external hexagon self tapping screws x4,wrench x1.