DescriptionUmbrella Table Hole for stabilizes, aligns, and protects patio umbrellas. Reduces friction and prevents scratches and dents on unstable umbrella poles. Included finishes the look of tabletop when umbrella is not in use.Features-Color: White -Material: plastic. -Size: About 6.1x6.1x1cm/2.4x2.4x0.39 inch. - Made of palstic. Stabilizes, aligns, and protects patio umbrellas. - Reduces friction and prevents scratches and dents on unstable umbrella poles, easy install and durable. - Replacement and Ring set. - Included finishes the look of tabletop when umbrella is not in use. - Great for patio furniture, with standard 6.1cm Outer Diameter, 4.2cm Aperture Diameter.