![Kolstein Double Bass Rosin](http://shop.allstringsattached.com/cdn/shop/products/Kolstein_20bass_20rosin_4000x_471e1456-c2e8-4ccb-8afc-1ab8235625cb_{width}x.jpg?v=1541273035)
Kolstein bass rosin is used worldwide by students and professional orchestral musicians. The Kolstein "all-weather" is medium hard and the Kolstein "soft" is medium-soft but still harder than the Pops rosin. Choose between all-weather or soft rosin. It is made in the USA.