2 Pcs 22mm Mushroom Latching Emergency Stop Push Button Switch With Waterproof Cover 1NO 1NC

these will do the job in a pinch, but their construction leave much to be desired, it felt like a cheap plastic toy from McDonalds instead of a true Emergency Switch. Needed two E-stops with covers in our restaurant that were Normally Off (NO), description was very misleading making one think that the 2 pcs were 1 NO and 1 NC, so I bought two sets. However when received it was apparent that each switch was capable of NO and NC. We installed them and they worked but concerns to durability and life due to the cheap feel made us replace them with more durable metal construction ones which we purchased from Amazon and were close in price and are very happy with those

These switches are made of cheap plastic. The metal looking part is actually plastic. Obviously, the contacts are metal.