Safety Technology International, Inc. STI-9610 Steel Web Stopper with Low Profile, Flush Mount – Is there an area in your house, school or work place that has heavy traffic? Do smoke detectors need to be on site so you are protected from fire or smoke? Well this UL listed, low profile wire guard helps protect flush mounted smoke detectors against vandalism and accidental damage. This unit is constructed of 9-gauge steel wire with corrosion resistant Polyester coating. Fast and easy installation, for anyone one looking to protect their investment. Tamper resistant hardware is available. Simple removal of the guard so your smoke detector can be serviced. Product may be spray painted once prior to installation to match decor. As all STI protective covers. STI "We protect the things that protect you."