The baser 220 LBS Umbrella Base Weight Sandbags come in a set of 4,  weighing 1 lb 12oz. These fillable sandbags are designed to provide stability and weight for your umbrella stand, ensuring that your umbrella remains securely anchored in windy weather conditions. Made of durable black material, these sandbags are the perfect solution to keeping your outdoor space tidy and organized while also protecting your umbrella from being tipped over. Each bag measures 11.9 x 6.82 x 2.72 inches, making them easy to transport and store when not in use.