Using this strap lock system is super easy. First, find the right place on your instrument to install the locks. Then, just attach the locks according to the included instructions. Connect your strap to the locks and you're ready to go. When you're done, you can quickly remove the strap. As for maintenance, keep the locks clean and dry. Avoid exposing them to extreme temperatures or moisture. If you notice any signs of wear or damage, it's a good idea to replace the parts. That way, you'll always have a reliable strap lock system for your instrument.