This is a ramp specifically designed for instruments like Sadowsky and other types with a wheel at the neck end. We often receive requests for production for instruments like ESP's AMAZE and AP, and we can accommodate those requests. This listing supports 5-string models as well. A truss rod adjustment opening is provided, but full-covered processing without it is also possible. Full-covered types offer advantages in terms of appearance and playability. However, you will need to remove the pickguard during adjustment, so an open type might be better for instruments with necks that move a lot. We do custom designs after individually confirming the size (^^) However, recently, various manufacturers have released models with unusually low neck-end heights. We also manufacture various other tools, and we offer a small discount for combined purchases.