This is a TRS-101 rocking tremolo made by Takeuchi Manufacturing, which went out of business a long time ago. It's a discontinued model that is no longer in production. Takeuchi Manufacturing was a very famous manufacturer that produced hardware for all kinds of well-known electric guitar brands. It's for right-handed guitars and is chrome-plated. It's a dead stock, unused item, so there is no deterioration on the edges, and it's in perfect condition! I think it's almost impossible to find unused items like this anywhere else, and of course, there will be no future production. If you are currently experiencing problems due to deterioration or are considering it as a spare for the future, I recommend that you acquire it now. The stud spacing pitch is 74mm, so if the pitch matches, it might be a good upgrade from your current tremolo. The string spacing pitch is 10.8mm. The height of the inertia block is about 42.5mm, measured with calipers. This is an auction for the main unit only, so please prepare the arm (6mm diameter) separately. Although it is an unused item, please refrain from bidding if you are a nervous person or if you are overly persistent. Instant purchase with no comments is OK. It will be shipped via Letter Pack Plus. Also, I am sorry, but I cannot accept price negotiations, so please be aware of this.