Used to warn drivers that a pedestrian trail crosses with the roadway ahead. MTO Book Location: New, Not in Book Reflective Engineering GradeHi-IntensityDiamond Grade Substrate AluminumGalvanized Steel Size 60cm x 60cm (24" x 24")75cm x 75cm (30" x 30")90cm x 90cm (36" x 36") Quantity Add to Quote