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Concave and Convex / Kitchen

Concave and Convex
Concave and Convex

Concave and convex are combined filter with lid. It’s made of silicone.
With silicone elasticity and plasticity, we can achieve concave and convex.
This product has lots of holes on it. The shape of the holes are like funnel,
and the hole's top is larger than the bottom . When the product transforms
into the shape of concave, the holes will open. Water can flow through, and
dregs would remain. When the product transforms into the shape of convex,
the holes won’t open. Water can be saved. Combining these two functions in
this product is convenient and it can prevent the lid missing.


Chaoyang University of Technology

Chaoyang University of Technology
Taichung, Taiwan

Min Yao Fang,
Chaoyang University of Technology