Solar Guard 7.5' Fiberglass Heavy Duty Beach Umbrella Rugged 600 Denier Polyester fabric UPF 100+ with silver coating lining blocks 99% of harmful UV rays ; Heavy Duty Fiberglass Ribs provide more flexibility which will not kink or bend out of shape and prevent inversion. The tips of the rib structure are designed with large plug for reinforced socket for much more durability. 1.5 inch dia. Two-piece white powder coated and non-tilt steel pole. Vented canopy designed to facilitate air flow for more stability Folded Umbrella length of 51 inches; Total Open Height 81 inches ; Lightweight of 7.5 lbs (including carry bag with shoulder straps) Rapid Thumb release snap button as locking function to prevent upper and bottom pole splitting during wind gust. (more secure than lever type) Optional Sand Anchor device (sold separately) is highly recommended. It's built to hold your umbrellas pole firmly in the sand for maximum stability. It screws into the sand or turf and makes your umbrella much more secure