Judas de sécurité pour enfant

When redesigning my house front door, we actually went through the discussion of peephole placement. While most of my family members are tall enough for standard placement, my mother-in-law and daughter are not. I wish I had chanced upon this creatively designed “Who is out there” peephole back then! It is such a simple solution to the age-old problem of how children or adults can safely open the door by seeing who is on the other side.

> http://www.yankodesign.com/2011/10/20/don%E2%80%99t-answer-that-knock/