Leo Fender used many parts for the bass guitar that are similar to the parts of an electric guitar. Leo Fender called the instrument the "Fender Precision Bass". He used the word "Precision" in the name because his instrument had metal frets on the neck. The double bass did not have frets on its neck. The frets on the bass guitar made it easier for musicians to play precise notes. The bass guitar developed by Leo Fender became very popular. In the 2000s, many bass guitars are still designed to look like his Fender Precision Bass.