The Pellebant Outdoor 10ft Square Cantilever Patio Umbrella with Wheeled Base is a high-end shade umbrella designed for outdoor spaces. Its unique square cantilever design not only provides an expansive shade area, but also allows the user the flexibility to adjust the position and angle of the umbrella as needed. The umbrella is made of high-density waterproof polyester fiber material, which effectively blocks UV rays and protects you and your family from direct sunlight during outdoor activities. The base is equipped with four heavy-duty wheels for easy movement and positioning, allowing you to easily move the umbrella to different outdoor areas. Please note: Set includes one patio cantilever umbrella and one base You need to sort crossed ribs before open the umbrella, in case umbrella ribs and cord break when opening The umbrella should be lowered and secured in windy conditions or when not in use The base is best filled with sand or sand & water mixed, so that the umbrella can be fixed more firmly Umbrella: Includes 1 patio cantilever umbrella and one base Base: Umbrella: Base: