Description: Material: Made of aluminum alloy, anodized surface, anti-deformation, anti-rust and anti-corrosion, no fear of heavy rain and wind, solid and durable. Design: 360-degree adjustable, and the umbrella can be moved left or right, ahead or backward, offering you a comfortable fishing experience. Suitable for connecting a fishing umbrella with a pole diameter of 22mm and a lower pole diameter of 25mm. Fishing chair umbrella clamp, easy to fix and depart, without much efforts. Designed to offer convenient shade, perfect for fishing, outside work and other recreation. Specification: Material: Aluminum Alloy Size Chart: 80×70mm/3.15×2.76inch 85×70mm/3.35×2.76inch 78×35mm/3.07×1.38inch 88×35mm/3.46×1.38inch Tube thickness: 3mm Inner tube diameter: 22mm, 25mm Package Includes: 1 Piece Fishing Umbrella Bracket Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!