Fit Most Umbrellas: This patio umbrella base is protected by PATENT. It is built to accommodate most umbrellas ranging from 6-12ft (1.26 to 1.9 diameter of umbrella pole). Please measure the umbrella pole diameter first then choose the suitable tube cap to fit this stand. Unique Umbrella Stand: Pentagle umbrella base overall size: 18.9 L x 18.9 W x 18.7 H, weights 42 lbs. Made with two wheels to move your umbrella anywhere in your yard, patio, or garden, and two adjustable tightening knobs to keep the pole in place. Mobile Umbrella Stand: Two wheels are a bit hidden underneath, and you should tilt the base forward and then move it by dragging the pole.