PREMIUM MATERIAL: Each card is made from durable cardboard, not thin paper cards. Slight gloss finished and rounded corners prevent scratched. HIGH QUALITY: No duplicate cards in a set of bingo cards. Each bingo card measures 4.1 x 12.1 inches (10.3 x30.9 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.