The Regal Bingo Bulk Bingo Cards with Sliding Windows are a set of reusable Bingo cards featuring 10 different cards in the classic game of Bingo. These cards are designed by the brand Regal and are perfect for traditional game nights or gatherings. The sliding windows on the cards make it easy to mark off the called numbers without covering the entire card, allowing for multiple uses. This set of Bingo cards provides hours of entertainment and fun for players of all ages.