Keep Umbrella Stable - With this pool umbrella stabilizer, the table umbrella can stand upright and stable even in windy and rainy weather conditions. The umbrella hole ring can firmly fix your table umbrella, keep the table umbrella from shaking, effectively reduce the possibility of the table umbrella falling over and scratching the table, and prolong the service time of the table and umbrella. High-Quality Material - The patio table umbrella hole ring is made of high-quality silicone material, which is reusable and saves resources. The umbrella hole ring is soft and elastic, not easy to break and wear, it can help you stabilize the table umbrella and keep it from shaking, it will of your great tools. Easy To Install - Soak the umbrella table ring in hot water before installation to soft and easier to install. Pool umbrella sleeve are easy to use, put the umbrella cone wedge into the table hole before use, insert the table umbrella into the table ring, rotate until the table umbrella stands firmly and it's ready. The umbrella table hole insert is used with your table umbrella, which can better protect you from wind and rain. Wide Application - The pool umbrella adapter is widely used in coffee shops, gardens, milk tea shops, bars, swimming pools, courtyards, restaurants, balconies, beaches and other occasions. The patio table umbrella hole ring plug is small and light, which can provide you with a lot of convenience. You can take it with you when you have a picnic or travel, which provides you with a lot of convenience and allows you to enjoy the outdoor happily. Colour:Black Material:Silica gel Package Contents: 4 * Umbrella Hole Ring Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.