The tip of the C part was too narrow, hitting the flat part of the hinge and did not enter inside. We responded by scraping with baby thunder. Depending on the type of hinge, processing is required. But I was happy to buy it. Adjustment is super easy.
The size is S, M, L, but only the weight and length are filled in, so it was not possible to use because the diameter of the hinge that can be used was not written. I think that it is very unfriendly as an internet site that can not be purchased by seeing the actual thing. Despite not writing the specifications of the product, it is strange that it can not be returned after opening.
It is still unused (although the number has not arrived), but the size of the place where you can hold a hinge and the one that you have before are almost the same, the length of the pattern is short, and it fits in the soft attachment for the A4 size document . It was just right, as the previous one was too long looking for short ones. As several people use it, we plan to purchase another one.