Outdoor Umbrella Stand Heavy Duty Market Umbrella Pole Holder 1100lb Capacity Cantilever Parasol Base Stand with Wheels Water & Sand Filled for Outside Garden Poolside. Pebbles not included. Wide Compatibility: Excellent for PURPLE LEAF 13-foot square umbrellas and 11 x 15-foot rectangular oversized umbrellas, this outdoor patio market umbrella stand fits most cross-base umbrellas for secure installation.