door lock

This is a very simple and easy to make door lock. What do you think is it safe? If this video gives you inspiration. Video maker: kwai 2314126384 Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statutes that might otherwise be infringing. Non-profit, educational, or personal use tips the balance in favor of fair use.