The ultra-durable shutter bingo cards are designed with smooth-sliding red windows that make covering numbers easy. The large, bold 1/2"" numbers help with visibility, and each card measures 7"" L x 7"" W for comfortable handling. This set includes 100 unique cards, ensuring a fair game every time. The five-ply stitched construction helps durability, allowing for frequent use. The quick reset function clears all windows with a single motion, making it easy to start a new game right away. Ideal for family gatherings, travel, or any game night, the shutter bingo cards create enjoyable moments with friends and family.