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We often need funnels to do diversion of liquid and powder in daily life. But when flow of dumping become excessive, bottleneck will be blocked. Air in the container cant go out, then the funned gets jammed. As a result, liquid overflows, lead to an unnecessary loss.
This design cuts a part of usual funnel, and leave a gap between the funnel and the container. So that air could go out and liquid can be poured into bottle fluently,regardless of large flow.
The shape of hook makes funnel can lay on any flat face stably instead of rolling freely.
This design is to prevent many waste, to make our life more comfortable and easy.