This work is an improved design for large-capacity snack bags with self-sealing strips. Based on the problem that it is not easy to get when there are few snacks, an interesting and practical solution is proposed. Pre-crease treatment of the packaging can achieve easy internal folding of the packaging, thereby shortening the packaging bag. The interesting topic of "please help me get dressed" not only guides users to shorten the packaging bag when there are fewer snacks to achieve the purpose of convenient access, but also promotes users to consume goods faster and achieve the purpose of commodity promotion.