This premium umbrella features the same ProLast materials as our premium spa covers for years of dependable use. It has a 8" square canopy mounted on a sturdy aluminum frame anchored to a heavy duty stell base that slides under your spa. It's true canilever design easily opens and closes. The umbrellas also has an innovative tilt handle allowing you to position shade and privacy exactly where you need it. It can also be rotated 180 degrees to shade seating areas next to the Spa!