DescriptionIf you are looking for a professional and reasonable door viewer, your research is here. That's because our products can meet your needs. It is made of zinc alloy and copper materials and craftsmanship, durable and practical, and can provide you with stable working performance.Features- Material: Zinc Alloy, copper. - Pipe diameter: 16mm. - Made of solid zinc alloy and brass material, durable and practical, fine workmanship. - Easy to install, you can easily see the whole outside environment, but not from the outside. - It has a beautiful 220-degree viewing angle, and the length can be adjusted to suit your needs. - It allows you to identify visitors from locked doors, providing the highest level of privacy for your protection and security. - This door viewer is perfect for home, office, hotel and front door etc. Improve your security.