Deluxe Natural 10' Offset Outdoor Patio Umbrella - Slate Grey Canopy Color: Grey Umbrella Shade Diameter: 10 ft. | Ribs: 8 | Pole Diameter: 2.0 in. Pole Material: Aluminum | Bottom Frame: Steel | Umbrella Shape: Octagon Light weight and sturdy construction NOTE: Requires sand bag or cement blocks to use as counter weight