The Gravity Stands GR-GBGWBLS331 is a robust, padded carrier bag, made of water-repellent 1680D ballistic nylon specially designed to fit the square base plates (563 x 563 mm) of Gravity lighting stands GLS331B and GLS431B. It has two carrying straps with a soft Velcro handle, a sturdy double zip and a see-through window for labels.