High Quality Material --- Made of thick PVC material, durable and can be used for a long time. Easy to Use --- Just filled with water, it can be placed directly on the outdoor flag. (Such as Knife Flag and Beach Flag.) Heat Sealing Process --- It is processed by high frequency heat sealing process. Suitable for flying fag poles and racks. Easy to fold and portable --- The bag has a water inlet with a cap and can be filled with water. Easy to release and fold up for storage. Multifunctional --- Suitable for families, villas, hotels, terraces, balconies, resorts, water parks, barbecue bars, western restaurants. Specification: Material: PVC Diameter: 51cm (approx) Package List: 1 x Weight Bag