The 3 inch Self-Adhesive Reflective Vinyl Letter O makes a great address character due to its high level of visibility. It offers easy mounting and can resist most weather conditions. 3 inch size Reflective Vinyl Letter OSelf-adhesive, long-lasting and weather-resistantFor Commercial or residential useCoast Guard approvedIdeal for marking boats, trucks, recreational vehicles and snowmobilesPeel off and press to any clean surface