Heavy Umbrella Stand, Patio Umbrella Stand, Premium Umbrella Stand, Fixed Clip for Beach, Patio, Balcony, Chair Clamp Durable material: Made of carbon steel with electroplating surface, strong oxidation resistance, not easy to rust, very strong, can be used for a long time. Flexible Design: The umbrella stand is suitable for umbrella poles of different diameters. A 1.5" diameter tube with thumbscrews holds the umbrella securely and allows you to adjust the height. Versatile: The large clip opening can be clipped anywhere you want, attached to stands, benches, tailgates, posts, boats, fences and more. (The maximum clamping thickness is 2 inches, please measure the thickness of the clamped object before purchasing.) Easy installation: The umbrella clip can be quickly installed on the railing and can be changed in position. Space saving: Thanks to the accessories on the balcony railing, you can leave more space for flowers on the balcony. High quality umbrella stand, very sturdy, perfect for securing your umbrella to protect you from the sun and rain.