Using the D'Addario Auto Lock Guitar Strap is easy. First, find the strap buttons on your guitar. Then, attach the strap to the buttons. The spring - loaded latch will automatically lock onto the buttons. When you want to remove the strap, simply press the latch to release it. As for maintenance, keep the strap clean by wiping it with a soft, dry cloth regularly. Avoid exposing it to extreme heat or moisture as this could damage the material. Also, check the latch and the connections to the buttons periodically to make sure they're in good condition. If you notice any signs of wear or damage, it's a good idea to replace the strap to keep your guitar safe and your performance worry - free.