By attaching the metal fittings to the strap and installing the dedicated pins on the body, the strap is securely fixed. When attaching or detaching, simply pull the knob and the spring will tighten, allowing for easy removal. While it's likely a copy and not made by Schaller, it doesn't feel cheap and won't look out of place even when attached to a high-end instrument. The build quality is very solid, and the durability is sufficient. We cannot guarantee its performance for actions that put excessive stress on it, such as spinning the guitar around.