It is a cold winter day. A little girl falls asleep with the window open. Because they didn’t want her to catch a cold, the little bears knit into her jacket decide to make their moves to zip up her wool jacket. They try again and again to fasten the zipper from the top but are not able to succeed. Then, as the bears hurry back to their places and watch, the child’s grandma comes into the room and zips up the fastener ever so easily. This was because YKK has developed zippers that make it easy for others to zip up, for instance, the jacket a small child is wearing.