Description: 【Durable Material】Momentary Push Button Switch is made of plastic material, flame retardant shell, high and low temperature resistance, stable and long service life. 【Button Head Design】Momentary Switch, beautiful, better protection, impact resistance, sturdy and durable. 【Application】Flat Head Reset Button Switch can be used in various marine equipment, machine tools, CNC lathes, electric power, industrial equipment, textile, light industry and other machinery and equipment 【Easy to Install】Reset switch, easy to install, you can easily complete the installation. 【Dustproof Wiring Port】The wiring port of the Round Emergency Stop Switch adopts a hidden design, which is rustproof and dustproof, safe and durable. Specification: material: plastic Contact: Normally closed Color: red Size Chart: 5cmx3cm/1.97inchx1.18inch Opening diameter: 2.2cm/0.87inch Package Includes: 1x Momentary Push Button Switch(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.