VEVOR Single Post Handrail for Outdoor 1-3 Steps, 40.5" L x 35.4" H Metal Bent Stair Handrails, Floor Mounted Carbon Steel Stair Railing, U-Shaped Post Grab Rails with 2 Anti-Skid Crossbar for Garage

The photos of this rail show it has one upright bolted into the ground but the written description is for wall mounting. Which is correct please?

Can you adjust the height up or down on this product?