Super-Sensitive Mini Rosin is a great wide-ranging rosin. It's made from an all-natural resin, and it supplies a super-tight grip on your strings with minimal scratchiness. What's more, its compact open wood box fits effortlessly in small instrument cases. Here at Sweetwater, we've found Super-Sensitive Mini Rosin to be as reliable in hot, tropical climates as it is in cold, dry climates. If you're searching for a general-use rosin that travels easy, you can't go wrong with Super-Sensitive Mini Rosin.