Hillman 3 in. Black & Silver Reflective Mylar Sticker Wide Style Letter R is designed to meet US Coast Guard and 911 requirements for boat registration posting, making it a reliable choice for various outdoor labeling needs. These reflective letters, measuring three inches or more, are for use on houses, mailboxes, mailbox posts, jet skis, and boats. The black and silver reflective mylar material ensures high visibility and durability in different lighting conditions, helping your markings stand out clearly and last longer. This wide style letter R combines functionality with ease of application, making it an i option for both safety and identification purposes. Model Number: