The B322110 Switch Bezels and Switch Caps Key Cap (Black) Manual Switches are manufactured by Omron. This electronic part is designed for use with D2VW Rotary Switches with a Built-in Knob, for panel mounting. The key caps in black can be used as a key lock mechanism, with a Washer and/or Seal added to provide further protection from dirt and dust. The key cap contacts can be both in a maintained and momentary state, with marker positions for settings.