Easy one-handed operation without a hammer. Mark a dimpled starting point on metal, wood, glass, leather or plastic surfaces, prevents drill bits or screws from slipping.5" overall size, with a excellent durability. Composed with chrome plated tip and high quality stainless steel body, with non-slip knurled texture giving you very comfortable and precise operation.With the tension screw, you can adjust the best tension on your work by rotating just the button. This will allow you to control the striking pressure of the double spring barrel and give you the correct indentation on the materials you are using.More than a center punch, it is also a safety tool in the car. This product is capable of working on glass, which means it can easily break the car window to help you escape in an emergency.Also, 5 inches is very space saving in cars.Features:Colors: Black and Silver.Contents:1 center punchesSize (L*W): 128*12.5mmNote: Due to manual measurement, there may be some error.Note: The data is manual measurement, please allow some error. 1-3cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.