Oralite 5910 (HIP — High Intensity Prismatic) is a professional-grade reflective sheeting from ORAFOL's Oralite range, sold here as a 1235mm x 50m roll in fluorescent yellow-green. It's a self-adhesive, weatherproof prismatic film designed for traffic control, road warning and information signage intended for long-term outdoor vertical use — the fluorescent yellow-green colourway specifically is the standard high-visibility colour used for pedestrian, school-zone and general warning signage where maximum daytime and night-time conspicuity matters. The prismatic (as opposed to glass-bead) construction gives it notably higher reflectivity at wide viewing/entrance angles than basic engineering-grade sheeting, and it's rated for roughly a decade of outdoor durability when correctly applied. Exact classification (this listing's "Class III" versus the manufacturer's own ASTM/DIN ratings) should be confirmed against ORAFOL's datasheet before specifying it for a regulated road-sign application.