3M™ Diamond Grade™ Conspicuity Markings 983 are microprismatic retroreflective conspicuity markings designed to mark the emergency exits, sides, and rear of vehicles for enhanced visibility and detection on the road. These markings feature prismatic lens technology formed in a transparent, synthetic resin, engineered to provide good visibility even at wide entrance angles. Backed with a pressure-sensitive adhesive, these markings are available in a variety of colours and configurations designed to meet industry standards.3M Diamond Grade Conspicuity Markings help ensure superior brightness and visibility on the road. Strong, rigid, and corrosion-resistant, these markings are backed with a high-performance adhesive that sticks securely to trucks, trailers, and emergency vehicles. Includes a clear polymer liner for easy application.