Look Alike Sound Alike, permanent adhesive labels. Perfect size will fit on any size medication or other item. Label helps to comply with the patient safety regulations which require that all medications and/or vaccines with a potential look alike or sound alike, must be clearly labeled with a warning message. This to help prevent patient medication administration errors, and help reduce patient medication errors. Bright Red, 1,000, 500 per roll 1 5/8" x 3/8", permanent adhesive.