Easy Installation: This patio umbrella accessory is easy to install and use. Size: The center plate of the outdoor umbrella measures 12 cm x 12 cm x 8 cm. Support: The main function of the center plate of the umbrella is . It supports the surface of the umbrella and the pole of the patio umbrella to ensure the stability of the umbrella. Decorative: Adds beauty and fashion to the outdoor umbrella. Premium Material: The patio umbrella accessory is made of premium polypropylene, ensuring wear resistance, durability and long-term use.