Hello! You're looking at a home built E (natural) trumpet. This trumpet is made out of a czechoslovakian valve block with Olds Ambassador slides and an Olds Ambassador bell. The instrument has a .455 bore and doesn't have any leaks. It also has no hooks or rings right now. However, I have a set of Bach Artisan hooks and rings that I will include (I bought them for this trumpet). The instrument is tuned by way of a tuning bell and the intonation is very good. The slides need to be lapped and greased to function as they should but for the price, it's a decent instrument that is hard to find otherwise. This instrument is fairly free-blowing and has a very sweet sound. It is perfect for playing the Hummel Concerto in E and for any of the famous orchestral solos in E. Feel free to message me with any questions. This instrument has served me well for the time I have owned it and now I hope to pass it on to someone who will get good use out of it as well.Good luck and Happy offerding