Strong Umbrella Stabilizer - These stabilizers ensure a tighter fit between the umbrella pole and stand base, helping to prevent accidents or damage to the umbrella. Easy to Install - Setup in only 2 minutes with 3 simple steps: 1. Insert the base stabilizer into the bottom of the umbrella stand base. 2. Choose the appropriate size from the two included ring parts (separate them first), and place it on top of the stand base. 3. Insert the umbrella into the base and use the provided tightening mechanism to secure it. Wide Application - The umbrella hole ring plug fits most umbrella types, including beach umbrellas, market umbrellas, and traditional patio umbrellas. Durable materials make these adapters suitable for use at the beach, on balconies, in backyards, and by poolside areas. Material: Metal + Plastic Color: Black Package Contents: 1 x Replacement Parts Kit (8 pcs) Note: This package includes only the items listed. Other products are not included. Lighting and display settings may cause slight color variations between the product image and the actual item. Measurement may vary by +/- 1-3 cm.