This Large 5 mm thick sheet of safety backed mirror glass is Ideal for gyms and bathrooms. The Safety backing is a high performance film which will keep the mirror sheet in one piece should it become broken. The Safety backed mirrors are a required feature for any commercial Gym or Dance Studio. These sheets are as cut edges so will have to be handled with great care. It is recommended that the installation of this size of Mirror Glass is carried out by a qualified tradesman or competent person.