What the manufacturer says:
Using a new alloy and a new, patented way of manufacturing the wire we combine high strength with just the right characteristics to make it perfect for string production.
Stainless steel means immunity to corrosion caused by high humidity or moisture from fingers. This means it can be used in all climates and with all players.
You will feel the perfect surface, and it will stay perfect for the whole lifetime of the string. This would all be worth nothing if it weren’t for the excellent dynamic range, the richness in overtones and the great response.
Put Lisa on your violin, get to know her and let her be your partner on your next performance.
R. McDonnell (4/4/14)
The new Lisa e string is a revolutionary product. The e is the first one to be made of stainless steel. The fact that it truly does not tarnish is incredible to say the least. I have a true skill at rusting out e strings and this one was as fresh as when I put it on two months later. My only complaint is the fact that it feels and sounds somewhat inflexible. It is still a unique and otherwise excellent product.