Pirastro has developed their own specific rosin and designed it according to the technical requirements of their different string lines. That is also the reason why each rosin is named after the brand names of the Pirastro violin and viola string lines.

Each cake of rosin is glued onto a soft cloth, which then is attached to a hard plastic grip. This prevents the fingers of the musician to get exposed to rosin dust and also makes it easier to apply the rosin.

Pirastro Cellisto Rosin
This high-quality soft rosin is a brilliant cherry red color. This rosin is well suited for general use and is loved by cellists.

Which Rosin Should I Use?
High-quality rosin allows for perfect bowing without scratchy sounds, especially if only a thin layer of rosin is applied. The general rules say to use harder rosin for violin/viola, medium rosin for cello, and softer rosin on string bass. Another important aspect of choosing the right rosin is the core material of the string that is being used. For steel strings, harder rosin is recommended. And for synthetic, gut, or gut-wound strings, use softer rosin. But for every rule, there are always exceptions, and that's certainly true when it comes to rosin. So don't be afraid to experiment and remember that a thin layer of rosin goes a long way!