Slide Guitar Extension Nut
Designed to fit over a standard 6-string nut, this extender raises the strings to allow playing with a steel bar, Dobro-style.
There's no need to modify the instrument or install a new nut; simply remove it for standard playing. The extension nut is made of nickel-plated steel, and is notched for 43.66mm string spread.
1. simple to use
2. doesn't damage the guitar
3. direct improvement on tone
4. makes slide playing so much easier