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 approximately 2 minutes. Follow these 3 steps: 1. Insert the base stabilizer into the bottom of the umbrella stand base. 2. Select 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 pole into the base and secure using the provided tightening mechanism. Wide Application - The umbrella hole ring plug fits most umbrella types, including beach umbrellas, market umbrellas, and traditional patio umbrellas. Durable materials allow use in various environments such as beaches, balconies, backyards, and poolside areas. Material: Metal + Plastic Color: Black Package Contents: 1 x Replacement Parts Kit (8 pcs) Note: This package includes only the items listed above; other products are not included. Lighting effects and monitor settings may cause slight color variations between the image and the actual item. Measurement may vary by up to +/- 1-3 cm.