Easy to install but for me the result was that wherever I placed it, the cat would not approach it, in no case did he use it to scratch his claws

The only solution to avoid torn sofas. It doesn't stick super well but it does the job. If you have trouble removing the film from the sticker, use a cutter on one corner of the sheet. Make a small cut of a few millimeters and pull from the edge of the very thin transparent film over the gray sticker.