Grey Craft Card Thick 1mm Cardboard Sheets Backing Boards A4 A3 Mountboard Mount

A3 (297mm x 420mm). A4 (210mm x 297mm). PREMIUM QUALITY 1000 microns (1mm) 770gsm GREYBOARD - BACKING BOARD - GREY CARD. THICK, STIFF, RIGID AND STRONG CARDBOARD SHEETS - THICK CARDBOARD.

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