The deep black 30 lb offset ombrella sector base ties in your patio decor beautifully, as it supports your patio umbrella. Whether it's over a dining table or off to the side, this base helps provide years of shaded enjoyment to you and your guests. Constructed of durable Envirostone??? it is weather and UV-resistant. The side lever secures the pole in place, while the adjustable inserts accommodate varying pole diameters. This umbrella base features an elegant hand applied woven textured finish, lending itself to any patio or deck.