Feature 1Made of premium stainless, sturdy, high strength, anti-rust and durable 2The lengthened hilt is good for firm holding and convenient using 3The self-contained set features a range of 13 round files in different sizes and a flat file 4Perfect for filing string slots into nuts and bridges 5Suitable for guitar and ukeleleSpecification Features: 1. Made of premium stainless, sturdy, high strength, anti-rust and durable. 2. The lengthened hilt is good for firm holding and convenient using. 3. The self-contained set features a range of 13 round files in different sizes and a flat file. 4. Perfect for filing string slots into nuts and bridges. 5. Suitable for guitar and ukelele. Specification: Material: Stainless Steel Color: Shown as picture Diameter: Approx. 0.014'' - 0.061'' Length: Approx. 8.5 cm / 3.34 inch Suitable for: Guitar, Ukelee Weight: Approx. 13 g Package List: 1 * Bridge File Set Note: These files, especially the thin ones, bend easily. It's recommended to use them with care.