<human>: What are the best sandbags to use?
<bot>: The best type of sandbag for your situation will depend on a few factors, such as the size and weight of the object you want to secure, the terrain in which you need to place it, and how quickly you need to be able to move it. For example, if you're securing an outdoor furniture set that's heavy and bulky, then a sandbag filled with stones or concrete may be more suitable than a traditional fabric-filled bag. If you have access to industrial strength bags made from woven nylon or polypropylene, these can provide extra support and durability. Additionally, consider using a combination of different materials to create a custom-made sandbag that meets your needs.