Features and Characteristics 1. **Sturdy Umbrella Fixation**: The patio umbrella cover can firmly secure outdoor umbrellas, preventing table umbrellas from wobbling and providing a safer and better user experience. 2. **Durable Material**: The table umbrella hole ring plug is made of silicone/rubber material. It is soft, elastic, long - lasting, reusable, and not easy to deform. 3. **Easy Installation**: Installing the patio table umbrella is a breeze. It only takes a few minutes to complete the installation, keeping the umbrella firmly in place and reducing wobbling. 4. **Wide Application**: The patio table umbrella stabilizer is suitable for various places such as gardens, courtyards, pool sides, coffee shops, restaurants, balconies, and beaches. 5. **Thoughtful Service**: If you have any questions about our products, please let us know at any time. We will provide you with high - quality service. Specification Parameters 1. **Material**: Rubber/Silicone 2. **Compatibility**: Outdoor table umbrellas 3. **Optional Configurations**: 1. One umbrella conical wedge 2. Two umbrella conical wedges 3. One umbrella hole ring 4. Two umbrella hole rings 5. One set of base brackets 6. Two sets of base brackets