Beach Umbrella Sandbag Material: Our beach umbrella sandbags are made of high-quality tear-resistant 600D Oxford fabric and PVC lining, which is waterproof, sturdy, not easily damaged or worn, ensuring reliable use throughout the year. Simple Operation: Our umbrella weight bag base adopts a square design, which is easy to load sand. Thread the beach umbrella pole through the reserved large hole, adjust the anchor hook ring in place, and then load sand to increase the weight. Even in windy weather, your garden umbrella will be stable. Scope of application: Our umbrella base weight bag is designed specifically to stabilize your outdoor umbrella, making it perfect for use at the pool, camping, picnic, beach, sporting events, and other occasions. Convenient storage: Our umbrella sandbag can be folded when not in use, making it smaller and easier to carry. It is also very environmentally friendly, and you can reuse it freely. Note: The data are all manually measured. Please allow 1-3 cm