These are high quality UK manufactured air pillows and are 100% biodegradable and environmentally friendly. A 15 cubic foot bag of pre-filled biodegradable air pillows branded by Opus Bio. Also known as air cushions, these provide excellent shock absorption for goods in transit, and are great for filling the gaps/voids in your parcels as a result, helping to avoid any damage to the goods. The size of each pillow is 400mm x 50mm and there are approximately 600 air pillows in each 15 cubic foot bag.