Please note that I will be unable to ship items until January 3rd. This item is no longer needed as I have switched from strap lock pins to strap rubbers. The LOXX Music Box Standard is a strap lock that can be attached to electric guitars and electric basses. The upper clamp range is up to 4mm, allowing it to secure straps of standard thickness. The strap lock body, a convenient key for installation, and felt pads to protect the guitar from the movement of the strap lock are included. It's easy to attach and detach, and the distance between this lock pin and the guitar body is short, minimizing any discomfort when worn on the shoulder. Also, the rattling sound that often occurs during use is barely noticeable, making it easy to use. - Brand: LOXX - Model Name: Strap-Lock - Material: Nickel, Chrome - Features: Low profile, easy installation, multi-use - Application: For electric guitars, basses, and acoustic guitars Thank you for viewing.