The Ibanez Roadstar Series II RB760 bass guitar has a different size pickup case for both the "fake humbucker" (which in the original is actually a P split pickup) and the J pickup, than what you can easily get in a store today. So I thought it was a good idea to create something that could replace them if need be. It started by me having a broken split J pickup and wanting to create something new to replace it.I will add a real picture once I have printed it in the latest incarnation.