Model: MW-3522NG Material: Brass Finish: YG, CP, SN, AB, AC, SC, ... . Door Tickness: 35-55mm. Lens: Glass Product: Brass Door ViewerModel: MW-3522NGMaterial: BrassFinish: YG, CP, SN, AB, AC, SC, PVD, PB ... request is negotiable.Thanks for your visit. Brass Door Viewer MW-3522NG