Upgraded Steel Tubing: With thick steel tubing, the umbrella base stand is resistant to bending, durable for years to come, which can safely support a 50 lb table umbrella and can be used in all weather conditions. Size: This umbrella stand has two tightening knobs to secure the umbrella to the base. Total dimensions: 11.2cm(L) x 11.2cm(W) x 29cm(H) Adjustment Range: This umbrella base is equipped with an adjustable plunger, a wide range of applications , can be adjusted according to the thickness of the umbrella column. Umbrella pole diameter: 3.8cm to 4.8cm. Lightweight and durable: designed to hold your patio umbrella securely. This product will allow for more space on your deck or patio. Easy assembly: Clean and store for home and commercial use. Suitable for family, villa, hotel, patio, balcony, villa, water park, barbecue bar, western restaurant, beauty salon, outdoor umbrella base, umbrella stand terrace, market umbrella base, corporate recreation area, etc.