RIGHT TURN ONLY Label, 18" x 12" The base material is a 4 mil thick vinyl with a 3 mil engineer grade film overlay that is reflective, for a total thickness of 7 mil. This enables nighttime visibility when light is refracted from the material by any source such as headlights, fog lights, or flashlights. Material has an aggressive adhesive backing. Just remove the liner and apply the label to any clean, smooth surface. These label faces are a great way to update, restore or replace deteriorating signs that have become discolored and worn out. Label faces are weatherproof providing outstanding outdoor longevity and resistance to fading.