A4 size cardboard backing boards. I purchased these in bulk, but no longer need them, so I'm offering them for sale. Perfect for cushioning, packaging, etc. This is a set of 10 sheets that fit in a Nekopos-compatible box. Instant purchase is welcome. Size: A4 (297mm x 210mm) Thickness: Approximately 3mm Weight: Approximately 30g per sheet A box set of 50 sheets is also available. I can adjust the number of sheets. Please comment if interested.