... windows 4.Life :more than 5 million times Flat type membrane panel specifications/ special Features:Material:Matte PET ,metal domes, ... connectors,terminals,led ,green mask tail,3M468 back adhesive etc.Membrane switch advantages:1. Beautiful appearance, rich and bright in colo ... erosion of harmful gases.5. Low cost, high lifespan membrane switches designed and manufactured for using the keyboard in a ...