Sign up for an Award
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.
Fixed amount of hand sanitizer once extrusion. The amount of extruded of hand sanitizer is fix, but it is a waste to many people. This design is that the users themselves defines the length of the neck and control the amount of extruded. At the sometime, when tourist packed it outside, it can tighten the lock of the export to prevent accidental extruded.
Zhejiang Sci-Tech University