DiMarzio Extra Fasteners for ClipLock Straps Standard Extra Fasteners for ClipLock Straps Standard The DiMarzio Extra Fasteners for ClipLock Straps includes everything you need to mount them on a second guitar of bass, enabling you to use a ClipLock strap with more than one instrument The DiMarzio Extra Fasteners for ClipLock Straps includes everything you need to mount them on a second guitar of bass, enabling you to use a ClipLock strap with more than one instrument