Convenient window lock for ventilation with the window slightly open Although there are marks from price tags and the packaging is damaged, the main body has never been used. - Model Name: S-10 - Type: Window Lock - How to Use: Allows locking with the window slightly open - Notes: Requires careful installation *Please read the instructions in the second photo carefully.* Shipping is not available to Hokkaido, Okinawa, and remote islands. No claims and no returns accepted.