Stencil, Character Type Message, Duty Light, FAA AC 150/5340-1K Compliant Not Applicable, Font Not Applicable, Included Characters, Messages, and Symbols Keep Aisle Clear, Includes Keep Aisle Clear, Individual Character Height 3 in, Individual Character Width Not Applicable, Interlocking No, Interlocking Orientation Not Applicable, Material PVC, Message or Symbol Height Not Applicable, Message or Symbol Width Not Applicable, MUTCD Compliant Not Applicable, Number of Pieces 1