Description: 【Quality Material】: This watch repair tool is made of PP, which is sturdy, It's resistant to scratches and can withstand long term use 【Versatile Sizes】: The set includes dies with diameters of 18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/41/42/43/44/45/46mm. These different sizes can meet your various needs for different watch models 【Wide Application】: This tool is suitable for various types of capping machines and a wide range of watch models. It's an ideal tool for both professional watch repairers and hobbyists 【No Scratch Operating】: The dies will not leave any scratches or mark on the surface or cover of the watch, so you don't have to worry about damaging your hands or watches during the process. 【Easy to Use】: With its simple operating, you can complete the repair work at home, saving you expensive maintenance costs Specification: Material: PP Size Chart: Box: 30.5 cmx20.5 cmx3.2 cm/12.01 inchx8.07 inchx1.26 inch Dies Height: 2cm/0.79inch Package Includes: 29 Watch Back Cover Press Dies Note: Please allow slightly errors 1-2cm differences due to manual measurement.