Black Core TCG Cardstock - 300-330gsm - 8.5*11in - DIY Proxies - Smooth/Blank

330gsm is closet to Magic cards. (.34mm thickness). (closer than 300gsm, 320gsm, or 330gsm). Letter size (8.5 11in) sheets. Fits in standard printers. A high gsm rated rear-fed laser printer is the most economical compatible printing technology.