The D'addario EXL120BT are Balanced Tension electric guitar strings. Nickel round wound, they have been optimised to have a consistant tension across the fretboard.
D'addario EXL120BT Balanced Tension, Super Light Gauge
The D'addario EXL120BT electric guitar stings are for nine gauge players that are looking to even up feel from top to bottom. Mathematically calculated they offer an increased control over a regular set. This balanced tension set have been manufactured in the USA. They have been created using nickel steel round wound onto a carbon steel, hexagonal core.