Enjoy outdoor leisure time with this attractive umbrella base! It is made of selected resin and steel, which is not easy to rust, crack and deform for years to come. The umbrella stand features a hand-turn tightening knob to help you secure umbrella to the base, so you can sit under the umbrella safely. It is an ideal choice for commercial use, such as concession stand, craft fairs, flea markets, etc. In addition, you can also use the base with umbrella for family gathering or backyard barbecue with your friends. Selected Material Built to Last: Made of premium resin and steel, this umbrella base can withstand the test of time and ensures long service life. The black finish is resistant to water and weather, making it ideal for outdoor use. No worry of deformation or cracking, it is durable to be exposed to the sun. 2 Adapters for Your Choice: The base tube is perfectly compatible with 3.8/4.8 cm diameter pole so as to fulfill your different requirements. In addition, this umbrella stand can be used with freestanding umbrellas or with umbrellas through outdoor table, whether for commercial and residential use. Stable Umbrella Base: The umbrella base comes with a hand-turn knob for fastening umbrella to the base, thus you can sit under the umbrella safely. It is easy to turn the knob one way to tighten into place and the opposite way to loosen it. Weighing 49lbs, it is heavy enough to support the umbrella and keep it stably even in windy conditions. Perfect for Outdoor Use: With classic decorative pattern and black finish, this umbrella base adds highlight to various outdoor occasions like balcony, poolside, backyard, etc. You can use it with umbrella to enjoy endless outdoor fun with friends and family while blocking out of sunlight. Easy Assembly and Maintenance: Under the detailed guidance of instruction, the umbrella base is convenient to put all parts together in short time. Smooth surface allows you to clean the stain with a soft cloth for good maintenance and helps reduce the cleaning burden.