Since the one used before did not function, it purchased. I think that the stopper part (plastic) wears out and it is a consumable item that can not hold the belt while using it. Although I do not yet understand the durability of this thing this time, I think that it seems to last long because I am firm in proportion to the price.
I dislike the seat belt tightly adhering to the body, until now I had to loosen the belt by stopping it with a clip. Even though clip did not have any problem, I bought this product for testing. It looks better. Even if you continue driving for a long time, the belt will not slip and close. Because it is inexpensive, I think that one who does not want to be tightened by the belt may be purchased.