SUKIMA Handle by takahiro nakamichi from usa
designer's own words:
"sukima" means an opening. in this case, it's a between wall and door. we often want to make opening for fresh air, relaxation, or having relation to another room. we usually use a door stopper, but "sukima handle" makes an opening by itself, easy way.
it's possible to have various version for replacing the core piece to plastics and gum instead of wood. much of variation must fit on several door materials and color, although interior.