HDPE; 1.
Weighted Patio Umbrella Base: 23lbs patio umbrella base, and wed better use it under patio table or with sand bag to hold our umbrella upright and stable.; 2. Durable Umbrella
Stand Outdoor Base: Made of HDPE & solid concrete, makes it more durable and long-term lasting, and prevent from breakage.; 3.
Ajustable Screw Knob: This outdoor umbrella base can fit most merket umrellas of 7.5 ft, 9ft, whose diameter of the pole is from 1.5IN ~ 1.9IN, according to the hand-turn piston and fixed pole plastic part, which will secure our umbrella to the base.; 4.
Easy-Installation: Comes with a wrench, just follow the instruction to assemble or remove it.; 5.
Elegant Umbrella Holder: it is easy to clean for its attractive 19IN diameter Star decoration pattern.