Features: Application: Widely used to control the electromagnetic starter, contactor, relay-and other automatic control electric circuits. This Push Button-switch is exquisite workmanship. Action: Self-Locking/Emergency-Stop/Emergency-Stop Button-Switch, Turn to Release. The button with indicator-light is easy to-deform the plastic lampshade for-a-long-time, which makes it difficult to replace the bulb. Therefore, it should not be used in-places with long power-on-time; Always-check the button to remove the dirt on it. Specifications: Material:Iron Size:As the Picture Show Package Includes: 1 Piece Push Button-Switch note: Please allow 1-2cm errors due to manual measurement,Please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.