-Durable and premium resin material ensures long-term use-Anti-rust steel tube adds extra stability to the base-Hand-turning knob for easy adjustment of tightness-Can be used with both 1.5" and 1.9" umbrella pole-Rattan design offers a piece of beauty and nature-Ideal for poolside backyard balcony shop entrance etc-Quick assembly with clear instruction and complete hardwareâ- High-grade Resin Material - This round resin umbrella base is made of selected resin which possesses remarkable performa