- Compatibility: Fits standard hole sizes of 3.81 cm and 3.43 cm, enabling flexible adjustment to different umbrella stand requirements for optimum stability. - Stable operation: Thoughtful gear mechanism guarantees even umbrella balance and smooth angle corrections without compromising base stability. - Outdoor durability: Weather-resistant components withstand temperature fluctuations and moisture, preserving the supporting function over many seasons in regular garden and terrace use. - Tool-free mounting: Practical twist knob system allows installation without tools, while the adjustable stabilizer enables individual tuning for maximum stability in diverse use scenarios. Use scenarios: - For patios or decks with standard bases to improve overall stability during daily use. - For cantilever or offset umbrellas where precise angle control helps maintain shade coverage. - In wind-prone garden corners or open terraces where quick repositioning and tuning keep the umbrella steady.