●【Easy to Operate】The sandbag is easy to operate, just fill with water (can be filled with 7 kg of water), and it can be placed directly on the flag. (such as knife flags, beach flags) ●【Thick PVC Material】The tent weight bag is made of high quality thick PVC material. Durable It can be used for a This weight bag can be folded for compact storage. Just add tap water before use ●Scope of application: Great for asphalt, sandy beaches, club activities, sports events, and other places where the tent and tarp cannot be used. Suitable for fishing, cycling, climbing, camping, etc ●High frequency heat seal processing: The weight bag is water filled type and has been treated with a high frequency heat seal process. Easy to use and can easily hug tent legs ●Product Specifications: Material: PVC. Diameter: 45cm/17.72"(approx) Our products are carefully inspected before shipping, so you can buy with confidence. If there is any defective item due to manufacturing or shipping reasons, please contact us freely