These are the most efficient packing materials! Inexpensive cardboard packing materials! Thickness is 2mm to 3mm! On average, it's about 2.5mm. The dimensions are 297mm x 210mm. Please confirm. We are very sorry, but we are not making any profit, so we cannot offer a discount. We kindly ask that you consider the current listed price. A4 size, 10 sheets! There are absolutely no odors from tobacco, pets, alcohol, fabric softener, etc.! See other sizes here! Different quantities are also available! For those who want to ship items without bending them, Why not try using these packing materials! Instant purchase OK! We will ship the same day (for purchases made by 3 PM)! Cardboard, corrugated cardboard, packing, packing materials, cardboard sheets, corrugated cardboard sheets, boxes, sheets, protective material, cushioning material, cushioning, paper, konpou, compou, materials