1. High-quality material: Cast iron material, zinc-plated surface, strong oxidation resistance, not easily rusted. Suitable for umbrellas, flags, and fishing rods. 2. Space-saving: With the accessory on the balcony railing, you can leave more space for flowers on the balcony. High-quality, very stable umbrella stand, perfect for securing your rain umbrella to protect you from sun and rain. 3. Easy installation: The umbrella stand can be quickly installed on the railing and the position can be changed. Thanks to the balcony railing accessory, you can leave more space for flowers on the balcony. 4. Large clip: The opening can be attached anywhere (0 ~ 7 cm), it can be easily fixed on balcony sun umbrellas, courtyard, swimming pool, laundry room, bench, hatch, boat, post, fence, etc. 5. Versatility: Anti-shake, strong grip, large three-wheel rain umbrella with a solid frame, suitable for stable tools such as trucks, tricycles, and various food carts.