Giottos Sandbags are made of high-grade, high strength 1680d nylon double jacquard fabric. They have an internal frame, a handle attachment, and a hidden cord that can be tied to the center column of your stand.
This is a two section, saddle-style sandbag. Each section weighs 1.1 lbs (0.5 kg), for a total of 2.2 lbs (1 kg).