PREMIUM MATERIAL: Each card is made from durable cardboard. Slight gloss finished and rounded corners prevent scratched. HIGH QUALITY: No duplicate cards in a set of bingo cards. Each bingo card measures 4.0 x 6.1 inches (10.2 x15.4 cm). Printed bold numbers, easy to read. PERFECT BINGO GAME - Portable and suitable for birthday parties, game nights, holidays, family activities, parties and so on.