Large Print-Braille Keyboard Labels- White on Blk The stickers use an easy peel-and-stick method to install. They will not ooze adhesive, dry out, or damage the original keyboard key. Braille Computer Keyboard Overlays Stickers (Lexan Material and 3M Adhesive Does Not Slip, Ooze, or Curl) for the Blind and Visually Impaired Braille and Large Print Combined Keyboard Stickers. The stickers provide Braille characters as well as easy-to-see big print letters displayed in high contrast White on a Black background.