When writing Braille (especially when you're fairly new at it), you're bound to make a mistake here or there. When that happens, and assuming you've got one of our large plastic Braille erasers handy, you can simply rub out the unwanted dots with the blunt tip of this instrument in seconds and give it another go. That way, just like when using a pencil, you can correct your writing without having to tear up your letter and start over! Furthermore, one side of our Braille eraser is flat, to prevent it from rolling away!