This water tight acrylic mirror face is a great teaching aid for swim instructors and can help young children of all ages learn to swim and gain confidence in the water. For many young children, learning to float on their back and put their head under water can be scary but with the Learn To Swim Mirror, lessons are fun and less frightening when they can see their own reflection. The aluminium composite back (ACM) and vinyl surround means the mirror is light and easy to handle in the water.