Velcro design: Crafted from durable oxford fiber coated with PU, these sandbags are built to withstand rigorous use. They are waterproof, provide sun protection, and can be easily cleaned, ensuring long-lasting performance.Tip: The filling sand is not included in the product package. | Enhanced Weight Capacity: The maximum weight capacity for each sandbag is 25 pounds.To achieve a better user experience, we do not recommend filling the bag with excessively heavy loads all at once. We recommend not exceeding 15 pounds of filling for each bag. | Portable and Space-Saving: When not in use, these sandbags can be conveniently folded into a portable size, taking up minimal space in your gear bag. Their lightweight design makes them easy to carry and transport to various locations. | Reliable Closure System: The sandbag features a reliable velcro closure design and a protective PU lining, preventing sand or dust from escaping. Your equipment stays clean and free from unwanted debris, ensuring optimal performance. | Versatile Hanging Options: Equipped with 4 free metal rings, these sandbags offer versatile attachment points. Hang them securely on light stands, tripods, boom arms, or other equipment, providing added stability and peace of mind. | NOTE: Each sandbag measures 10.3 x 12.2 inches (26x31cm), while the metal ring has a diameter of 2.75 inches (7cm). The package size is 12 x 11.4 x 8.85 inches (30.5 x 22.5 x 2cm) Not recommended for direct filling with sand or liquids as the contents.