STIFF, THICK, BUT LIGHTWEIGHT TWO SIDED BLEACHED UNCOATED PRIMARY FIBRE BOARD / CARD. A2 420mm x 594mm (16.5" x 23.4"). A3 297mm x 420mm (11.7" x 16.5"). A4 210mm x 297mm (8.3" x 11.7"). VERY HIGH ABSORPTION, SUITABLE FOR CRAFTS AND MANY OTHER USES.