Opaque Dvorak English Keyboard Label / Stickers White Characters on Black Non Transparent Background - Perfect Solution for Fading Characters on Your Keyobard Made of Lexan (Will Not Slide or Ooze) Material and 3M Anti-Slide Adhesive on the Reverse Side of St The stickers are available in white letters on black, non transparent opaque stickers. Dvorak keyboard labels allow you to configure any keyboard as a Dvorak keyboard for faster typing an These labels are opaque and will completely cover the keys. English Characters