dd sparkle and luxury to your handmade greeting cards, invitations, gift tags, holiday decorations, and more with Sizzix Surfacez Opulent Cardstock. This thick, high-quality cardstock is made from 99.9% poly (ethylene terephthalate) and 0.1% aluminum and has a thickness of 250 gsm. It’s ideal for die-cutting, and because it’s acid- and lignin-free, your creations won’t yellow or degrade over time.