Certainly Rico does not have the prestige VANDOREN (Conservatory, in concert it does so much more chic, innit), but for us poor ringers from Eb clarinet, saxophone, bagpipes of this grease is stronger good quality, it holds over time. My Eb clarinet (which is not a Buffet Crampon ebony but SMS Academy Ebonite Boehm keywork with money and who just sounds perfectly by toy on 2cellos) that I have not played for more than 6 months lack of time did not have its cork seals damaged, fat RICO stood firm despite the temperature variations of more than 7 ° C (with a moth and desiccant sachet next) without browning or cambouiser. It should not be exposed to light or moisture, like any product violin / archery ...