The button bezel kit provides custom button engraving for TST-600 wireless touch screen (and TST-600-WALL wall mount wireless touch screen). It provides custom laser text engraving of the touch screen buttons. Engraving is backlight on the black models. Custom engraving is easily attained using Crestron Engraver software. Blank models are also available to either remove all engraving or allow for custom engraving by a third party.