[DURABLE MATERIAL] The sturdy bag is made of Oxford fabric, which is tear-resistant, weather-resistant, fade-resistant and UV-resistant. The sides are triple stitched for extra stability. 45 x 20 cm 【Large Capacity】Roll over any umbrella pole to protect you in windy weather. NOTE: Sand is not included in the package. [PRACTICAL DESIGN] The base sandbag has a detachable design, so you get the security you need without the hassle of setting up. Equipped with an ergonomic handle for easy and convenient transport. 【Easy to use】Just open the large zipper on the top of the sandbag, put the sand in and seal it. Insert the umbrella pole into the round hole of the sandbag. Umbrellas are securely attached in minutes. 【Wide Application】The load-bearing capacity is high when filled with sand, suitable for fixing umbrellas, parasols, tents, etc. Ideal for balconies, beaches, camping, lawns, gardens, mountains and more.