1. Adjustable and secure The balcony umbrella holder is designed to securely hold umbrellas with a diameter of up to 38 mm. It can be easily attached to standard and unusual railings, providing a stable and adjustable holder. 2. Spacesaving and practical With a unique clamping plate design, this umbrella holder eliminates the need for additional bulky bases, saves space, and allows unobstructed pathways. It prevents damage to the umbrella pole and ensures a secure attachment. 3. Weatherresistant Made of galvanized cast iron, this holder excellent resistance to oxidation and rust. Its impactresistant construction and stable grip provide stability and protection from sun or rain, making it suitable for various outdoor environments. 4. Easy installation and versatility No tools are required for installation, and the holder can be easily adjusted and removed with screws. With a quick assembly time of less than 3 minutes, it can be conveniently installed on railings and allows easy positioning throughout the day for optimal sun protection or shade.