Mounts to wall with provided screws Overhang protects bottles from dust and debris Twist off, tamper resistant tabs prevent leaking and are easily removed in an emergency Holds factory-sealed, sterile, preserved, buffered saline solution bottles firmly in place for easy access in an emergency Simple, highly visible, operating instructions are provided on each unit Durable, easy to clean plastic.Includes:Two 32 oz Bottles of Eye Wash