9' Alum. 3-Way Tilt Umbrella-Your Choice

Is this a table top umbrella or does it stand on the floor?

It is a floor umbrella. It requires a stand of some sort.

How does this one compare with the other less expensive umbrella being offered?

This is aluminum, the other is steel. Steel will be stronger.

This one appears to have an aluminum frame and the other is steel. The aluminum is less likely to corrode with the proper coating than the steel.

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