● Solid metal frame for long service time● There are wheels that add to its mobility● Weighing 50lbs it ensures stability in windy conditions● It comes with a handle for easy carrying● Can be used with a freestanding umbrella or under the patio table● Fit to a 1.37”/1.49”/1.88” diameter umbrella pole for 3 adapters● 2 hand tightening knobs to tighten the position of the umbrella● Suitable for garden poolside backyard balcony and more● Easy to assemble with detailed instruction