Door viewer

Overview
Door viewer, from umaylocks in Wenzhou, Zhejiang. The listing gives material Zinc Alloy, hole diameter 14mm and tube diameter 12mm.
Technical specifications
| Material | Zinc Alloy |
|---|---|
| Hole Diameter | 14mm |
| Tube Diameter | 12mm |
| Head Diameter | 16mm |
| Back Diameter | 15mm |
| Finish | CP/AB/AC/SN |