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Problem points: generally when they go out, will be placed in the PET bottle straw or canned bottle, but often leads to a straw stuck in the sink in the bottle or the bottle, you need to dig it by hand.
Solution: buoyancy device features among the straw, so that straw itself can float, not even close the lid off the suction pressure; when open the bottle, the straw because of the buoyancy principle, playing to the bottle.
Straw at the top there like a spring-like retractable straw front, timely adjustment of the length and direction of the drinking straw, and have fun.
Chaoyang University of Technology