These Grey backing boards are made from 100% recycled material. Manufactured to consistently high grade batches. Designed to add stiffness to your print or artwork. Sandwich your artwork between a backing board and photo mount, then place into one of our bags to provide a rigid professional appearance to your artwork. We do combine shipping costs if ordering more than one item - simply add the required items to your basket and click 'Request Total From Seller' If you'd like any information regarding our products, please do get in touch.