Trading Cards by Paper Accents. Design cards for every event, holiday or person quickly and easily with these popular cards. Try using photos, rubber stamps, rub-ons, stickers or other fun embellishments. These cards are acid-free, lignin-free, buffered and archival quality. Chipboard. 100% Recycled paper. White. 100lb. 2 1/2 x 3 1/2 inch. 25 pc.