The Blue Sea Contura Switch Mount 8260 is perfect for installing up to 6 switches on a dashboard or fly bridge. The switches clip in and are sealed with the gasket supplied with the Switch. The outer side of the mount should be sealed if required to be waterproof.DimensionsDesigned for mounting in 6 different panel thicknesses: 0.06″ (1.57mm) 0.09″ (2.36mm) 0.13″ (3.17mm) 0.19″ (4.75mm) 0.25″ (6.35mm) 0.38″ (9.52mm)