The adjustable buckles on three connecting straps allow you to adjust the strap lengths easily in order to fit different opening angles of the tripod.Compared to hook closure, it can increase load-bearing capacity.and Anti-slip design reduces air resistance and helps stabilize the tripod in windy conditions outdoors. Premium High-quality nylon material,stone bags is sturdy enough to hold stones, sand or photography accessories and the material is also waterproof, abrasion, corrosion, and high temperature.The portable Tripod Stone Bag are compatible with most kinds of tripods, such as light weight tripods, travel tripods and studio tripods. The practicability of Tripod Stone Bag makes it an indispensable partner for any photographer.When not using it, you can fold the light weight tripod stone bag up conveniently and stuff the bag into your camera backpack, which add little weight to equipment you carry around.Putting some heavy objects like gravel or sand into the tripod sand bags will provide additional stability as photographing in windy days. The sandbags also can be used to store camera accessories, such as lenses and battery charger.