【New, Unopened】Glass Break Prevention Film for Transparent Flat Glass - Security, Window

Product Number: WF3012
I purchased this at Kohnan four years ago, but it did not fit my windows, so I am selling it.
You can buy this for around 3,000 yen on Amazon and other sites.

I have not used it, but I did open the bag once to try and use it.
At that time, the clear plastic bag was torn.
(Please refer to the photos. I will reinforce it with tape before shipping.)
Also, the instruction manual has some creases.
(It does not affect readability at all.)

As mentioned above, this is not a new item.
Please understand that it has been opened, has been in someone's possession, and has been stored at home for some time before purchasing.

I plan to ship via standard mail.＾＾
Thank you for your consideration.