![Kolstein Bass Rosin](http://shop.theviolinshopinlincoln.com/cdn/shop/products/kolsteinaw_{width}x.jpg?v=1589853308)
Kolstein bass rosin is used worldwide by students and professional orchestral musicians. It is made in the USA. The Kolstein Double Bass Rosin comes in three options:
- Hard
- All-Weather (Medium-hard)
- Soft (Medium-Soft, but still harder than Pops rosin)