This B-309 material is a high intensity presmatic reflective sheeting with photoluminescent material backed with pressure senstive adhesive. Ideal for use in general permanent labeling indoors and in severe outdoor environments. Special acrylic adhesive adheres strongly making marker removal difficult Ultra-reflective technology allows for maximum visibility from a greater distance than standard vinyl. Character Height 3 in Dimensions 3.5 in H x 2.5 in W UOM Pack of 10 Labels Indoor or Outdoor Use Outdoor Use Maximum Service Temperature °F 212 °F Minimum Service Temperature °F -40 °F PSPA Photoluminescence Class Photoluminescent