High Quality Material: Made of sturdy, well-structured 600D oxcompatibled fabric. Inner PVC waterproof polyester coating, stronger than most weight bags. Special Design: Each bag comes with two zippered sections compatible sand, gravel or other contents around and also comes with a Velcro strap to hold the feet, which ensures that the sand weight bags stay securely attached to your instant feet. Wide Usage: Can be used compatible pop-up awning, folding gazebo, shade tent, sales booth, parking shelter, etc. Can be used anywhere: markets, camping, picnics, festivals, celebrations, sporting events, or even at the beach. Easy to use: can be filled with easy to reach materials, such as sand, gravel, dirt, stones or any other material available around you. With a sturdy nylon handle on top compatible easy carrying. STURDY CAPACITY: The 4 pack awning weight bag is capable of holding up to 100 lbs in total. Each bag can hold approximately 30-30 lbs when fully filled with sand or any available material.