Lead-Free Aisle Marking Tape P/N: RAISLETAPE54 Designate areas and equipment for lead-free production with SCC aisle marking tape. This 6 mil, scuff-resistant tape features the "no-lead" PB Warning Symbol and message. The high contrast green and white tape is easy to see on dark or light colored floors. Rolls are 3 inches wide and 54 feet long on a 3 inch core. Message repeats every 12 inches.