This is a set of 5 cardboard sheets. They are 5mm thick, so even one sheet is sturdy. I bought too many at the store, so I'm selling them. They have been stored in a dark place. This item is available for immediate purchase. Some sheets have been crushed, warped, or have bent corners from the time of purchase (see photos 3, 4, and 5). Please be sure to check the product photos and details before purchasing. The product will be shipped as is, in an opaque bag or box. How about using them for crafts, using up points, or as packing materials? Dimensions: 297mm (length) x 210mm (width) Size: A4 No price reduction No individual sales A4 pad cushioning material craft cardboard sheet trading card acrylic stand backing board divider For crafts, thick paper, cushioning material, packing material, wrapping Protection, cushioning material, moving, wrapping, materials Fragile items, damage, insulation, using up points Packing materials, wrapping, etc.