Thank you for viewing. I'm selling this because I switched from strap lock pins to strap rubbers and no longer use it. 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, and it can secure straps of standard thickness. It comes with the strap lock body, a convenient key for installation, and felt pads to protect the guitar from the movement of the strap lock. It's easy to attach and detach, and the distance between this lock pin and the guitar body is short, so it feels less awkward when worn on the shoulder. Also, the rattling sound that often occurs during use is almost unnoticeable, 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.