Product features: Hard card case is made of transparent quality acrylic material, waterproof and dustproof, and can protect your cards against grease, dust and water for the long term. With magnetic design, the card holder effectively prevent the card from falling and losing compared with the traditional card sleeves. The lightweight travel size design of the card holder keep your cards tidy and clean, while they will not add burden to your pocket, nice gifts for most people who like to protect cards. The magnet card holder can be applied for collecting various cards, such as trading cards, baseball cards, football cards, sports cards, cartoon cards, and business cards, etc. Specifications: Material: acrylic material Color: as picture shown Internal size: 2.52 x 3.52 inches External size: 2.87 x 4.33 inches Package includes: 50 x Magnetic card holder Notes: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen display.