Use them to prevent friction and scratches between your outdoor furniture and umbrellas, and to keep your umbrella stable and secure during wind or rain. The table umbrella hole inserts are made of silica gel, a soft and durable material. This ensures the inserts can be used for a long time without worrying about discoloration or breakage. Even in strong winds and storms, they remain stable, giving you a better user experience. Unique Design: The tapered design of our silicone umbrella wedge makes it more stable and secure. This design ensures your umbrella stays firmly in place without risk of swaying or tipping over during strong winds or storms, providing you with a more enjoyable outdoor experience. Easy to Use: The umbrella base stabilizer installs and assembles easily in seconds. It's small and lightweight, making it easy to carry and store for travel or outdoor activities. Wide Application: Our umbrella stand is ideal for various environments, such as beaches, pools, cafes, bookstores, balconies, patios, and more. Color: Black Material: Silicone Package Contents: 2 Umbrella Stands Only the mentioned package contents are included. Other products are not included. Note: Due to lighting and different displays, the color of the item in the picture may vary slightly from the actual product. The allowable margin of error in the measurement is +/- 1-3 cm.