The door stopper purchased at the 100 yen shop was able to use. The door stopper is named only, and the door can not be fixed at all. In the instructions, "When the floor is slippery, when the door stopper slides, please put the attached non-slip seal on the floor", but the seal stated that only when the garbage is falling down It can not be used because it looks like. (When you noticed it was peeled off at the time of cleaning.) As a result, the door stopper does not fulfill its role and the door closes. Why did not make the bottom flat rubber? Why are we jagged to make the installation surface with the floor less and make it slippery? I am suffering from understanding. As I thought, I would like to see painful eyes when I finished doing the mail order after spending the trouble of going to buy. I will purchase it from the next shop at 100 yen shop. It was a good learning experience.