This item was purchased over 10 years ago, so it's quite old. It's new and unopened, but please understand that I can't confirm the contents before purchasing. The packaging has yellowing and possible sun damage. (It was stored in a place away from direct sunlight.) Ernie Ball Super Slinky Bass strings, roundwound type, gauge 45-100. - Brand: Ernie Ball - Model Name: Super Slinky Bass - Gauge: 45-65-80-100 - Type: Roundwound - Country of Manufacture: USA Thank you for looking.