Product Details:

180 Degree Viewing
Excellent for T-Intersections
Ceiling or Wall Mounting
Hardboard Back

Constructed of High Quality Durable 1/8" Thick Acrylic.
Excellent visibility is attained from a high quality mirror coated interior surface.  

Half Dome 180° Mirror can be placed strategically at "T" intersections to eliminate blind spots.

Ships complete with easy to install mounting instructions.

Covers Area up to 250 sq. ft