It is a great all round rosin for basses and bass bows. The all weather rosin works fine in every situations. The rosin has a thick and safety rubber cover. So it's protected from the mechanical effects. At the first time the rosin was a little bit hard. But after a while has became softer. After you use the rosin it's recommended to play open strings with a full bow. It helps to remove the plus rosin from the bow's hair. You don't need to use it very often. I think this kind of all weather rosin is not so expensive to buy. But the quality and the sound what's produce it is really good. If it's too hard for you, put under a lamplight for a bit, and it will be softer.