Cyalume adhesive backing arrow. Enable safer evacuations in the dark. Patented cyflect is the only product where 100 percent of the surface area is both prismatic retro-reflective and photo-luminescent. Cyflect products are non-toxic, on-hazardous, and waterproof. The material is visible through fog and smoke and, unlike glass-bead material, will reflect equally wet or dry and from oblique angles.