Enjoy your outdoor activities without worrying about the weather with the PURPLE LEAF Suspension Bias Umbrella. This outdoor patio umbrella features a sturdy all-aluminum frame with 8 heavy-duty reinforcing ribs for stronger support. And the anti-oxidation spray paint makes the umbrella last longer, helping to ensure that the umbrella remains stable in all conditions. Simple tilt operation and hand crank lift make it easy to adjust as needed. Keep your eyes and skin healthy with this waterproof and UV protection umbrella. Square umbrella with base: