These patio umbrella replacement adapters are made of plastic, reliable and reusable, sturdy and safe, with high temperature and weather resistance characteristics, threaded adapter is made of plastic, not easy to break or rust, which can be used for longtime, and bring you a great using experience. Features -Color:White -Material:Plastic -Size:5.30X5.30X3.50cm/2.08X2.08X1.38in - Enhanced Stability: The thread adapter use providing enhanced stability for the umbrella pole. - Easy to Install: Simple installation process to use these threaded pool umbrella stabilizers, no tools required. - Stable Materials: Made of plastic, this threaded adapter is durable and can withstand different weather. - Versatile Compatibility: Fits various umbrella pole sizes, can be used for many pool umbrellas, widely used. - Sleek and Stylish: The simple color and sleek design make this threaded adapter a stylish addition to pool area. Package list: 8 x umbrella thread adapter