Hold your tripod down securely with the medium Alta Tripod Stone Bag from Vanguard. This sturdy polyester bag attaches to the legs of your tripod with hook-and-loop fasteners and acts as a counterweight, providing extra stability when using a heavy camera setup or holding a tripod down in windy conditions. You can also use this bag as a shelf to keep your lenses, caps, or filters safe and accessible. A hook on the bottom of the bag lets you attach additional weights when you use the bag as a shelf. You can easily fold it and store it in your camera bag.