The Costway Fillable Umbrella Base is designed to provide stable support for outdoor umbrellas up to 15ft. This package includes a sturdy square umbrella base, a dust-proof cover, two wear-resistant sandbags with a capacity of 200 lbs, and an easy-to-follow instruction manual for simple assembly. The powder-coated metal frame ensures durability, while the adjustable knob allows it to fit 1.9-inch umbrella poles. The removable cover protects against dust and rain, and metal hooks prevent slipping. Ideal for enhancing outdoor spaces, this umbrella base combines functionality with ease of use.