HIGH QUALITY BINGO BOOKS:Each card is made from Professional bingo paper,You will recieve 500 sheets bingo paper cards . 5 COLORS! 100 cards in each color: Red, Yellow,Blue, Green, Purple.5 Vibrant Colors for Easy Game Organization. EASY TO CARRY: Bingo game cards measure 4" x 4".Printed bold numbers ensure readability for all ages,and no duplicate cards for a fair game every time.