Traditional 6 hole mounting, traditional style trem arm, cast block, 10.5 mm string pitch and 52.5 mm mounting screw spread - so not a direct replacement for a U.S. vintage specification tremolo (which is 10.8 mm and 56 mm.). Made in Japan.
Check the specs. on your existing trem if ordering as a replacement.
Comes complete with all mounting screws, claw, springs and allen key.