4-Pack: This set includes 4 glass nail files in 4 different gradient colors: silver, purple, blue, and red. Each nail file is individually packaged in an ABS case. Reusable & Washable: These glass nail files are reusable and can be washed with water after use, making them easy to clean. Crystal Glass: Crafted from high-quality natural crystal glass, these nail files won't rust or corrode. The fine, uniform grit is sandblasted onto the file, making it durable, long-lasting, and resistant to wear. Double-Sided: The double-sided design allows you to polish and shape your nails with ease. The smooth edge effectively prevents scratches, while the fine-grained surface provides a gentle and even filing experience. Protective Case: Each glass nail file comes with a protective ABS case, preventing breakage and making it easy to store or carry. The case measures 5.9 x 0.79 x 0.39 inches, perfect for your purse or pocket. Perfect for Manicures: Suitable for home and professional salon use, these glass nail files are ideal for filing, polishing, and shaping fingernails, toenails, rough nails, artificial nails, and acrylic nails. A perfect tool for manicures and pedicures!