It's stamped "Aria Pro II" but it's a GOTOH ART-1 Floyd Rose tremolo bridge. This is the arm for sale. This Japanese-made Floyd Rose is definitely more reliable than inferior overseas models! The build quality is solid. I've been storing this after I stopped using it. It's old, so there's some rust, but it should be perfectly usable! Tremolo block length: 38mm (Photo 10) Stud bolt spacing: 74mm, the same as a standard Floyd Rose tremolo (Photo 11) - Model Name: ART-1 - Included: Arm, anchor bolts - Type: Bridge Thank you for looking.