The Advantage Grip Scrim Bag 21" fits wire diffusion scrims up to 21 inch in diameter. Scrim Bags are made of 1000 Denier Textured Nylon. Each bag has a Fibreglass rod sewn into the top to help keep the bag open when empty. A hook & loop strap closure keeps wire scrims in place. Hanging straps are long enough to allow removal of scrims when hung on top “T” handle. Stocked in Black only.