A2 A3 A4 A5 A6 WHITE CARD THICK PAPER CARDBOARD PRINTER COPIER SHEETS GSM CRAFTS
Especially with 250gsm and 300 gsm, which are quite a stiff cards. A5 148mm x 210mm (5.8" x 8.3"). A2 420mm x 594mm (16.5" x 23.4"). GSM is the weight of the paper, not the thickness. CIE Whiteness (ISO 11475) - 145%.