STEEL PLATE UMBRELLA BASE, 24" SQUARE, 9" SLEEVE — Low profile steel plate provides appropriate weight and counter balance for large market umbrellas. Pre-drilled holes allow bases to be bolted down. Square plate styles provide increased stability. Used with 11⁄2" diameter umbrella poles. 9" high sleeve for in-table use. Available in 15 Tropitone colors. Up charge for premium finish colors. Weight : 80