This Harmony XB4, flush mounting kit has a chromium plated color. This kit allows to flush mount any pushbuttons or pilot lights of the XB4 series. It allows the installation of devices on control panels to be more resilient to side impacts due to passing objects, tools, opening doors. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It has a metal bezel, this makes it Ideal for applications requiring high impact and vibration resistance. It is designed to fit with a standard 22mm control and signaling units, ensuring compatibility when installing in pre-existing machinery. Allows prevention of injury and damage on signalling units by concealing the unit beneath the level of the panel surface.