Our weather and tamper proof range of Readerboards have been developed with security in mind. We have developed a readerboard that has a clear 5mm perspex sheet which is easily applied to the front of the letters, which is then locked down without interfering with your assembled message. This is then fastened onto the sign in several places (depending on your sign size) using our security bolt and spacer. A change in message becomes a very simple procedure. If you have any questions, please call our help line on 0800 9 545 014, quoting your unique readerboard serial number printed on the face of the board.