Large Print English Keyboard Stickers Labels Overlays (Lexan&reg; polycarbonate, 3M&reg; adhesive) for the Visually Impaired (Non Transparent - Black with White Letters) Durable stickers: Stickers are manufactured of durable Lexan. They won't tear, crack, discolor, or slip off even after years of use. Quality Printing: The printing is on the underside of the sticker so the Ink never wears off or scratches off . Easy to Apply: The stickers are easy to apply. The stickers are printed in the same sequence that they appear on the keyboard regardless of the keyboard's original language. Quality Adhesive: The Sticker adhesive firmly attaches the sticker in place without damaging the key Removable: If desired, Stickers may be removed without causing damage to the original key or the legend on the key.