Gravipod GP-18S is designed to fit over your offset, cantilevered or standard patio umbrella stand and provides110 pounds of stabilizing force. Easy-Fill System makes it simple to fill with sand in place, so no heavy lifting. Quality, durable construction with industry leading components, means no leaking, no tears, and product longevity. Neither sleet, nor rain, sun or snow will defeat our weight bag.  It was designed and rigorously tested to withstand Mother Nature's whims.

• Simple, convenient, durable and looks great - Just add your own sand*
• Designed for umbrella stands with up to a 3.0" umbrella post, but can accommodate post sizes of up to 3.5" by filling the bag less full
• New design - Now includes our exclusive rugged and durable Ballistic Rip-Stop fabric - no rust, dings or dents
• Adds up to 110 lbs of additional gravity to your existing umbrella base
• Soft and easy on the toes, no hard edges to kick.

Exquisite Craftmanship:

• Industrial Ballistic Rip-Stop Polyester fabric with 5/8 in weave.  Top of the line industrial grade fabric.
• Highest Quality 2" Velcro to prevent messy leakage or spillage, even with multiple fillings.  Grade A means it is the strongest, most durable velcro on the market.
• Triple-stitched 606 Heavy Duty Polyester thread sewn on all seams.  The highest tensile strength available for sewing production.
• Internal water resistant PVC membrane which keeps moisture out and sand inside the product. This critical full additional layer of protection does not degrade.

Shipping Note: Shipping to Alaska, Hawaii, and PO Boxes is not available for this item

Warranty: 90 Day Woot Limited Warranty