Umbrella Base 40lbs, Square Patio Umbrella Stand - Outdoor Market & Beach Umbrella Base with Adapters, Heavy Duty Steel, Hand Tightening Knob

【Durable Steel Construction】: Crafted from high-quality steel with a powder-coated finish; resists rust, corrosion, and chipping for long-lasting outdoor use; provides a stable foundation for your umbrella against moderate winds; supports umbrellas up to a certain weight capacity. 【Secure Hand Tightening Knob】: Features a user-friendly hand-turn knob for easy and secure umbrella pole fastening; quickly tighten or loosen the knob to adjust or remove your umbrella; accommodates standard umbrella pole diameters with included adapters. 【Universal Compatibility】: Includes three plastic adapters (1.4", 1.5", and 1.9" diameter) to fit a wide variety of market and beach umbrellas; suitable for both residential and commercial use; ensures a snug and stable fit for different umbrella pole sizes. 【Space-Saving Flat Design】: Low-profile design with a thickness of less than 1" allows for comfortable placement under patio tables; maximizes legroom while providing reliable umbrella support; adds a stylish touch to your outdoor area. 【Easy Assembly & Versatile Use】: Simple assembly with clear instructions and all necessary components; ideal for balconies, poolside, backyards, and other outdoor spaces; enjoy shade and comfort during leisure activities with family and friends; provides reliable protection from the sun.