Product Name: 3D printer ENDSTOP mechanical limit switch ramps 1.4 Length, width and height: (129.4mm * 88.9mm * 1.6mm) Weight: 11.4g Item Type: Switch Application: 3D Printing Customized with high quality wire, it can be resistant to 2A and 300V voltage. Insulation is very wide temperature range(it can reach 80 degrees), which is much better than the ordinary thin copper wires. Not easy to pull off, while plug is convenient. Mechanical limit switch Schematic Analytical principle 1 end: power supply (VCC) 2 end: ground (GND) 3 end: connect with 2 4 end: Signal