✮Material: ABS ✮ Suitable for door thickness: 60mm-90mm, suitable for fiberglass metal doors. ✮ replace your door viewer in with tools required.The lens will against burglary, intrusions and home invasion. ✮ degree viewing provides the security of identifying visitors from behind a locked door,You can easily view the entire surrounding area from the top of to the feet of someone standing outside. ✮ A solid, heavy duty viewer increases your privacy. With the in place, visitors outside cannot see through the viewer into your home, offering the of privacy for your and, Manufacturer: TTTLLNN