Description: 【Sturdy and Durable】The umbrella clamp stand holder is made of heavy duty iron material, strong and durable for long time use, no need to worry about the wind. 【Simple Installation】No tools needed, just tighten the umbrella with the top knob, clip it on the railing, fences, tables, decks, bleachers, benches, tailgates, boats, poles, and more; max clampable thickness is 6cm/2.4inch. 【Feature】3.8cm/1.5inch inner diameter tube with thumbscrew to firmly hold the patio umbrella and allows you to adjust the height. Please Note: Umbrella not included. 【Save Space】The umbrella stand saves more space on decks, patios, gardens and other outdoor places, no more heavy and annoying umbrella bases on your deck or patio. Also it is portable, you can take it anywhere outdoors to use. 【Application scope】Umbrella clamp is perfect for use on any corner surface, such as deck, bleachers, tailgate, boat, fence, etc. Except for supporting the umbrella, it is also great for holding flags, torches, fishing rods, or other poles, so it can also be used for fishing, picnics, parades, camping, working outdoors and so on. Specification: Material: Iron Size: Umbrella Clamp: 16cmx6cm/6.30inchx2.36inch Max Clampable Thickness: 6cm/2.4inch Color: Black Inner Diameter Of The Metal Tube: 3.8cm/1.5inch Package Includes: 1 Fishing Umbrella Mount Note: Please allow slightly errors due to manual measurement and different monitors.