insert for umbrella stand

Home Zone Living 119lbs 21" Square Heavy Duty Planter Umbrella Base, Wheels, Convertible as Table or Planting Box, Supports Up to 11 Ft Umbrella

Flash Furniture Universal Black Cement Patio Umbrella Base with Weatherproof Plastic Polymer Coating - 19.25" Diameter

Emma and Oliver Universal Black Cement Patio Umbrella Base - Weatherproof - 19.25" Diameter

GDFStudio Gretna Outdoor 68 lb Concrete and Iron Round Umbrella Base, Black

NAYSAYE Fan Style Cantilever Umbrella Base Heavy Duty Refillable 4 Panel Stackable Weatherproof for Backyard Lawn Pool Use, Black, 38.2"*38.2"*3"

WestinTrends Sturdy Freestanding Resin Umbrella Half Base, Black

Whisen Patio Market Umbrella Base & Outdoor Round Umbrella Base

Four Seasons Courtyard Canmore 19 Inch Round Base for 2 Inch Umbrella Poles to Shade Outdoor Backyard Gardens, Patios, and Porches, Black

Crestlive Products Umbrella Base 4 pcs 240lbs Heavy Duty Outdoor Patio Umbrella Base with Water and Sand, Cantilever Umbrella Square Base

Patio Umbrella Base Set, 4 Pieces, Supports 155 lbs – Square Base with Convenient Fillable Water or Sand Opening for Garden, Lawn, and Deck – Black

Outsunny 4 Pieces Round Patio Umbrella Base, Cantilever Offset Outdoor Umbrella Weights, 52 Liters Capacity Water or 112 lbs Capacity Sand Plates Set

Outsunny 4 Piece Patio Umbrella Base Weight Set, Outdoor Cantilever Offset Umbrella Weights, 132 lb. Water or 176 lb. Sand

Outsunny 2-Piece Cantilever Offset Patio Umbrella Base Weight Set, 231 lb Heavy Duty Water or Sand Fillable Outdoor Offset Umbrella Weights

GDFStudio McVay Outdoor 55lb Concrete and Iron Square Umbrella Base, Brown

Crestlive Products 45lbs Heavy Duty Square Cement Market Umbrella base with Wheels Multiple colors/finishes Patio Umbrella Base

GDFStudio Gretna Outdoor 57 lbs Concrete Circular Umbrella Base

GDFStudio Mila Outdoor 34 lbs Concrete and Iron Round Umbrella Base, Black

Flash Furniture Kona Universal Cement Patio Umbrella Base with Weatherproof Plastic Polymer Coating - 19.25" Diameter

Nature Spring 4-Piece Crossbar Base for Offset Patio Umbrella - Black

Christopher Knight Home Haechan Modern Patio Lightweight Concrete Round Umbrella Base with Multi-Colored Tiles Design

Nature Spring 50-lb Patio Umbrella Base - Black

vidaXL Umbrella Base Black Plastic and concrete base, iron tube