3M Diamond Grade conspicuity markings series 983 are highly retroreflective microprismatic markings designed to enhance the visibilities of the sides and rears of vehicles. These reflective markings consist of prismatic lenses that are formed in a transparent, synthetic resin and sealed and backed with a pressure sensitive adhesive and clear polymeric liner. Diamond Grade conspicuity markings are highly durable, providing up to ten years of field performance. 3M series 983 markings have excellent angularity which provides enhanced visibility for drivers. For warranty and product information on specific applications, such as trucks and trailers, rail cars, school buses, or emergency vehicles, please see the specific product bulletins. This product bulletin applies to applications other than trucks and trailers, rail cars, school buses, or emergency vehicles.