Material: Knocker – Zinc Die-cast              Viewer - Brass Fits 9/16” Hole Adjustable from 1-3/16” ~ 1-7/8” Plastic lens with 220 Degree Field of Vision Projection: 1-1/8” from Door Surface Overall Size: 2-1/2” x 5-1/2” Complete with Screws

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Material: Knocker – Zinc Die-cast              Viewer - Brass Fits 9/16” Hole Adjustable from 1-3/16” ~ 1-7/8” Glass lens with 180 Degree Field of Vision Projection: 1-1/8” from Door Surface Overall Size: 2-1/2” x 5-1/2” Complete with Screws 20 min. UL Fire Rated

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Material: Knocker – Zinc Die-cast              Viewer – Brass Fits 1/2” Hole Adjustable from 1-1/8” ~ 1-7/8” Plastic lens with 160 Degree Field of Vision Projection: 5/8” from Door Surface Overall Size: 1-3/4” x 4” Complete with Screws

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Material: Knocker – Zinc Die-cast               Viewer – Brass Fits 1/2” Hole Adjustable from 1-1/8” ~ 1-7/8” Glass lens with 160 Degree Field of Vision Projection: 5/8” from Door Surface Overall Size: 1-3/4” x 4” Complete with Screws 20 min. UL Fire Rated

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