Bond Manufacturing - 8 Kg Resin Umbrella Base - Made of Resin. Umbrella pole holder 10.63 in. H. Adjustable inserts allow for varying pole diameters. 1 year warranty. 16.9 in. L x 16.9 in. W x 2.1 in. H (17.6 lbs.)The 17 lbs. Envirostone Umbrella base combines a timeless design with the versatility of environmentally friendly materials.  The umbrella weight is 100% rust proof so you&#039;ll never need to worry about it staining your deck or patio.