Originally Posted by naturecoastcrafter
Are those available in US? This is good info. Thanks.
They are! They're made by Faber Castell (coincidentally their factories are right here in our host country, but we can only get student-grade products here...) and they're an oil-based pencil.
Here's a link to them on Dick Blick: Faber-Castell Polychromos Pencils - BLICK art materials
I got my set of 120 (slightly used) on ebay for less than $70, which included a new leather case. I'd suggest keeping an eye out there! Still very proud of that great deal.