Material: The automatic front sight is made of high-speed steel, which is resistant to impact, wear and rust to extend the life of the front sight. Striking force adjustment: Spring tension adjusts for light or heavy strokes, marking, punching and staking, use the heavy head to mark the center of a hole you want to create. Easy to use : Press the handle firmly and push it in the direction of the stamp. align it with the positioning point. the strong spring will forcefully eject the pad. no tools such as a hammer are needed, one-handed operation, convenient and easy to carry. Elaborate design: The bag has a deep knurled finger grip for easy handling and better control. A comfortable hat provides a good cushion for the palm of your hand and can resist the influence of feathers. < p>Emergency application: Besides wood and metal, it can also break car glass panels, as long as you use it in the corner of the window, it will break and fall, or it can be pushed and escape. Specification: Material: steel, aluminum alloy, plastic Size: 13 * 2.8cm / 5 * 1 inch Color: blue, red Product descriptions: The stamp is made of precision high speed steel and the knurling of the surface is very deep so that it does not slip. The impact resistance is adjustable. Simply unscrew the cap to adjust the depth of the punches. In addition to wood and metal, it can also break glass car windows. Just use it in the corner of the window. It may break and fall, or slip and escape. Suitable for wooden floors, fiberboard, particle board, plywood, plastic, aluminum board, etc. Note: 1. Please keep them out of reach of children. 2. Please allow chromatic aberration due to different lights and displays. 3. Please allow slight measuring errors due to manual measurement.