WOD REF-5S Striped Retro Reflective Tape, Black & Yellow - 1 in. x 150 ft. Engineering Grade for Floor Marking, Hazards Warning, Car and Trailer Pinstriping.: Amazon.com: Industrial & Scientific
File:Floor marking 5S safety Scanfil Sieradz.jpg - Wikipedia
A Guide to 5S Floor Tape Colors for Lean Manufacturing