Item number 2310147,
Twelve roller-wound brass strings. This is the string that Folkcraft started recommending for its dulcimer bass string back in 2012. A bit brighter, a bit smoother to the fingers, and a bit louder. The ultimate wound string for your dulcimer!
These strings are sometimes called "squeakless", and they certainly squeak less than regular (not roller-wound) strings. However, there's no such thing as an entirely squeakless string. We recommend these strings wholeheartedly.
This particular string is .024 in diameter, and is sometimes called .024RW.