Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Plastic chairs are very common in our life,but they are
so hard to separate when they pile up,
so we make protrudent half-balls inside the legs of chairs,
in order to increase space between the legs and reduce the area.
they contact each other.