Features: Practical Watch for Case Press Fitting Die: Watch for case press tool die helps you to get your watch back for case closing, suitable battery change & maintenance done at home instead of going to watch repair shops, for professional or watch repairers, great tool for money saving. Multiple Size: The watch press die kit comes with 20 pieces press dies, multiple size that fit for mostly watch back cases, easy to use and could meet various requirement. Screw Design: Each press die’s featured with a metal screwed hole in the middle, which is easy to install to your press tools, durable and convenient. Premium Material: The watch for case back press dies use durable nylon plastic material, professional for watch repairing need, wear resistance & accurate cutting which also has perfect performance for repairing tasks. Wide Range Application: The press die kit could suitable for various watch for case closing, multi function and size which is convenient to meet your daily requirement. Specifications: Product Dimension: as pictures shown Material: Nylon Net Weight: approx. 150g/0.33 lbs Package Includes: 1 Set Watch for Case Press Fitting Dies (20 pieces) note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.