This is a traditional 6.5 Ft. lifeguard umbrella that has 5.0 mm chrome plated steel ribs with stainless steel joints and rivets. The stainless steel parts and a silver mist coated frame provides protection against peeling and UV damage. The 1 3/8" diameter upper aluminum pole and 1 1/2" diameter lower attachment pole has a heavy gauge tilt mechanism. The durable 9 oz. acrylic fabric top has triple stitched pockets makes this the ideal umbrella for your resort or indoor pool.