Here are a series of unusual doorknob designs with vastly different forms. See if you can work out what they all have in common:
What they have in common is that you cannot loop a cord/rope/shoelace around them.
These "anti-ligature" doorknobs are designed specifically for behavioral health facilities, hospitals and correctional institutions where the room's occupants might harm themselves.
Create a Core77 Account
Already have an account? Sign In
By creating a Core77 account you confirm that you accept the Terms of Use
Please enter your email and we will send an email to reset your password.