Versatile Watch Press Tool: This tool is designed for closing watch back cases with ease. It includes a comprehensive set of dies to accommodate various watch sizes and shapes, making it an essential tool for any watch repair enthusiastAdjustable Die Heights: The adjustable dies heights allow you to work with different thicknesses of watch cases, ensuring a secure fit every time. The base is fixed with screws (four included) to prevent slipping during useComprehensive Die Set: Comes with 12 round dies (18/20 21/23 24/26/28/30 31/32 33/34 36/38 40/42 44/46 48/52mm), 6 square dies (20 25 30 35 40 45mm), and butterfly dies in two sizes, totaling 20 pieces. This variety ensures compatibility with a wide range of watchesMetal Construction: Made from metal, this Watch Back Case Closer offers durability and longevity. Its high elasticity spring provides quick action while the curved anti slip handle enhances comfort during operationCompact Design: With dimensions of 16 cmx11.5 cmx7.8 cm/6.30 inchx4.53 inchx3.07 inch, this watch press tool is compact yet powerful enough for professional use or personal projects at home, making it easy to store or transport as needed Specification: Material:Metal Size Chart: 16cmx11.5cmx7.8cm/6.30inchx4.53inchx3.07inch Package Includes: 1 Watch Back Case Closer20 Dies Note: Please allow slightly errors due to manual measurement and different monitors.