You've tried the 200gsm card for your display board and it's bowing, cracking along the fold, or just not standing up on its own. That's the weight talking. This is 500gsm — roughly double the thickness — so it behaves more like a light board than a sheet of paper. It holds a cut edge without chipping, supports a glued-on structure without sagging, and stands upright on a desk or shelf without a backing. The black is deep and even across the full 510 x 640mm surface. Individually barcoded, so you grab exactly the sheet you need. Cut it with a craft knife for clean lines, or use heavy-duty scissors if you're in a hurry