This product is an ultra-reflective word panel made with Oralite Fluorescent Lime V98 and Red Orafol Overlay. The size is 6 inches by 24 inches which is great for the back of trucks or trailers.
It can be seen for up to a thousand feet away (over 5 times brighter than Engineer-Grade which other sellers use) and the Oralite V98 film is rated for 5 years.