Description: 【Package Contains】: The package includes 20 pieces in total, an essential tool for both professional watchmakers and DIY enthusiasts alike. 【Premium Material】: Made from premium alloy material, these tools are sturdy, durable, and built to last. 【Function】: These dies are great for pressing the back cover of the watch after battery replacement or repair without causing any damage. 【Specifications】: The set includes a variety of sizes to fit different watch cases. The diameters range from 20mm to 58mm, providing a wide variety of sizes to meet your different needs for watch repair. 【Wide Application】: Easy to use. applicable to different types of watches, Suitable for watch repairing, case closing, etc. Specification: Material: Alloy Size Chart: 2cm/0.79inch 2.2cm/0.87inch 2.4cm/0.94inch 2.6cm/1.02inch 2.8cm/1.10inch 3cm/1.18inch 3.2cm/1.26inch 3.4cm/1.34inch 3.6cm/1.42inch 3.8cm/1.50inch 4cm/1.57inch 4.2cm/1.65inch 4.4cm/1.73inch 4.6cm/1.81inch 4.8cm/1.89inch 5cm/1.97inch 5.2cm/2.05inch 5.4cm/2.13inch 5.6cm/2.20inch 5.8cm/2.28inch Package Includes: 20pcs Watch Press Dies Note: Please allow slightly errors due to manual measurement and different monitors.