- 300 thick paper study flashcards, durable and suitable for smudge-free writing - Includes a removable metal ring to group, organize, and flip pages easily - 6 different colors to classify information by topics or subjects - Size of each card: 8.5 x 12.5 cm, ideal for notes, lists, and memorization - Versatile use: study, office, home, crafts, and educational games - Precise perforation allows you to add or remove cards as needed - Each color contains 50 cards, making visual and thematic organization easier - High-quality paper prevents ink bleed-through and enhances the writing experience