Breathable material to avoid condensation/moisture retention and the resulting risk of rust

we have solved a simple but nagging problem

WideVision (170°) Anti-Fog lens

Easy to assemble

NGK - Standard Spark Plug (CR9EH-9) Options:CR9EH-9 Breathable material to avoid condensation/moistureNGK standard plugs are constructed for longer life and optimum performance. Trivalent metal plating provides superior anti corrosion and anti seizing properties. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage