designer's own words:The subject of our concept design is "aluminum can" that is easily accessible to everyone. Existing aluminium cans have stay-tap opening mechanism that you open a can by pulling up the tap on the top. We designed the tap part to stick inside the plastic cap. in this way, people can use the can more easily, safely, cleanly. Anyone can easily open the can when they just pull on the cap. You don't need to worry about having to wipe off the top edge of the can. Anyone can open the can more easily and safely. Also, you can keep the can from any dust or pollutants after drinking because of the plastic cap.