Koogel 250PCS Index Cards with Ring, Colored Study Cards Waterproof Covers 2.2 x 3.5 Inch Blank Notecards Flash Cards for School Learning Memory Office Recipe Game Cards

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About This 5-Color Coding System – Enhance memory retention with color-coded flash cards: red for verb conjugations, blue for medical terms, green for sentence templates, purple fo r project management, and orange for math formulas. Scientifically proven to boost learning efficiency by 60% High-Quality Study Supplies – Made from thick, double-sided writable paper, these index cards prevent ink bleed-through. The reusable metal binder rings keep notes organized, making them ideal for exam preparation and long-term study Portable Design – Students can separate flashcards by subject (e.g., Biology, French) for focused studying, teachers can use them for interactive classroom activities. In project management (PM), color-coded Sprint phases on boards offer an intuitive way to track progress and work status clearly Multi-scenario Learning – The 360° rotating metal ring allows easy flipping, making these blank note cards perfect for studying in the subway, library, coffee shop, or on the go. The waterproof covers protect against dust and spills for long-lasting use Space Saving – Includes 250 blank index cards (2.2” x 3.5”) in 5 colors (50 per color), 10 waterproof covers, and 5 durable binder rings. The compact size saves 37% more space than traditional 3” x 5” index cards, making study cards perfect for travel and everyday use Overview Material : Paper Brand : Koogel Color : 250pcs Size : Small Item Weight : 10.86 ounces Show more